Full view v.1-2 1923-24
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Cornell University
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Full view v.15-16 (1937-1938)
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Columbia University
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Full view v.17 no.1-2(1939:Jan.-Feb.)
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University of Illinois at Urbana-Champaign
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Full view v.17 no.3-5(1939:Mar.-May)
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University of Illinois at Urbana-Champaign
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Full view v.17-18 (1939-1940)
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Columbia University
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Full view v. 18
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University of California
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Full view v.18 no.3-5(1940:Mar.-May)
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University of Illinois at Urbana-Champaign
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Full view v.18 no.6-7(1940:June-July)
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University of Illinois at Urbana-Champaign
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Full view v. 19
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University of California
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Full view v.19-20 (1941-1942)
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Columbia University
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Full view v. 20
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University of California
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Full view v.20 no.6(1943:June)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.21-24 (1943-1946)
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Columbia University
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Limited (search only) v.25-27 (1947-1949)
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Columbia University
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Limited (search only) v. 27
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University of California
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Limited (search only) v. 28
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University of California
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Limited (search only) v.28-29 (1950-1951)
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Columbia University
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Limited (search only) v. 29
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University of California
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Limited (search only) v. 30
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University of California
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Limited (search only) v.30-31 (1952-1953)
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Columbia University
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Limited (search only) v. 31
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University of California
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Limited (search only) v. 32
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University of California
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Limited (search only) v.32-33 (1954-1955)
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Columbia University
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Limited (search only) v. 33
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University of California
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Limited (search only) v.34-35 (1956-1957)
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Columbia University
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Limited (search only) v. 35 1957
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Purdue University
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Limited (search only) v.36-37 (1958-1959)
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Columbia University
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Limited (search only) v.37 1959
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Cornell University
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Limited (search only) v.38 1960
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Cornell University
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Limited (search only) v.38-39 (1960-1961)
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Columbia University
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Limited (search only) v.39 1961
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Cornell University
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Limited (search only) v.40 1962
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Cornell University
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Limited (search only) v.41 1963
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Cornell University
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Limited (search only) v.42 1964
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Cornell University
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Limited (search only) v.43 1965
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Cornell University
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Limited (search only) v.44 1966
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Cornell University
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Limited (search only) v.45 1967
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Cornell University
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Limited (search only) v.46 1968
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Cornell University
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Limited (search only) v.47 1969
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Cornell University
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Limited (search only) v. 48
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University of California
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Limited (search only) v.48 (1970)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.49 (1971:June-Dec.)
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Columbia University
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Limited (search only) v.49 (1971:Jan.-May)
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Columbia University
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Limited (search only) v.49 (1971)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.50 (1972)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.50 (1972:July-Dec.)
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Columbia University
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Limited (search only) v.50 (1972:Jan.-June)
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Columbia University
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Limited (search only) v.51 (1973:July-Dec.)
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Columbia University
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Limited (search only) v.51 (1973:Jan.-June)
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Columbia University
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Limited (search only) v.51 (1973)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.52 (1974:July-Dec.)
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Columbia University
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Limited (search only) v.52 (1974:Jan.-June)
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Columbia University
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Limited (search only) v.52 (1974)
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University of Illinois at Urbana-Champaign
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Limited (search only) v. 53:1-10
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University of California
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Limited (search only) v.53 (1975:July-Oct.)
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Columbia University
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Limited (search only) v.53 (1975:Jan.-June)
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Columbia University
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Limited (search only) v. 53 1975
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Purdue University
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Full view 1933 1933
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The Ohio State University
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Limited (search only) suppl. 1946
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Cornell University
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