Full view 1930
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University of California
|
Full view 1930-36
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University of Minnesota
|
Full view 1930-1933
|
University of Illinois at Urbana-Champaign
|
Full view 1930-1934
|
University of Michigan
|
Full view 1935-1938
|
University of Illinois at Urbana-Champaign
|
Full view 1935-1939
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University of Michigan
|
Full view 1938-41
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University of Minnesota
|
Full view 1940-1944
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University of Michigan
|
Limited (search only) 1945-1949
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University of Michigan
|
Limited (search only) 1945-1947
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University of Illinois at Urbana-Champaign
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Full view 1945
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University of Minnesota
|
Limited (search only) 1947
|
University of Minnesota
|
Limited (search only) 1948
|
University of Minnesota
|
Limited (search only) 1949
|
University of Minnesota
|
Limited (search only) 1950-1952
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University of Michigan
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Limited (search only) 1951-1953
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University of Illinois at Urbana-Champaign
|
Limited (search only) 1953-1955
|
University of Michigan
|
Limited (search only) 1955
|
University of Minnesota
|
Limited (search only) 1955
|
University of Illinois at Urbana-Champaign
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Limited (search only) 1956-1957
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University of Illinois at Urbana-Champaign
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Limited (search only) 1958
|
University of Minnesota
|
Limited (search only) 1958-1960
|
University of Illinois at Urbana-Champaign
|
Limited (search only) 1959
|
University of Minnesota
|
Limited (search only) 1960-1962
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University of Michigan
|
Limited (search only) 1961-1964
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University of Illinois at Urbana-Champaign
|
Limited (search only) 1963-1966
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University of Michigan
|
Limited (search only) 1967
|
University of Illinois at Urbana-Champaign
|
Limited (search only) 1967
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University of Michigan
|
Limited (search only) 1968
|
University of California
|
Limited (search only) 1968-1971
|
University of Michigan
|
Limited (search only) 1970
|
University of California
|
Limited (search only) (1971)
|
Columbia University
|
Limited (search only) 1971
|
University of California
|
Limited (search only) (1972)
|
Columbia University
|
Limited (search only) 1972
|
University of California
|
Limited (search only) 1972-1974
|
University of Michigan
|
Limited (search only) 1973
|
University of California
|
Limited (search only) 1974
|
University of Illinois at Urbana-Champaign
|
Limited (search only) 1974-75
|
University of California
|
Limited (search only) 1975-1976
|
University of Michigan
|
Limited (search only) 1976
|
University of California
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