Limited (search only) v.50 :1-6(1977)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.50 :7-12(1977)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.51:pt.1 1978
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Northwestern University
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Limited (search only) v.51:pt.2 1978
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Northwestern University
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Limited (search only) v.51 Jan.-June 1978
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University of Iowa
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Limited (search only) v.51 July-Dec. 1978
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University of Iowa
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Limited (search only) v.51(1978)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.52(1979)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.52 Jan.-July 1979
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University of Iowa
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Limited (search only) v.52 Aug.-Dec. 1979
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University of Iowa
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Limited (search only) v.52:pt.1 1979
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Northwestern University
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Limited (search only) v.53(1980)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.54 Jan.-June 1981
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University of Iowa
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Limited (search only) v.54 July-Dec. 1981
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University of Iowa
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Limited (search only) v.54(1981)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.55(1982)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.56(1983)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.57(1984)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.57 July-Dec. 1984
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University of Iowa
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Limited (search only) v.57 Jan.-June 1984
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University of Iowa
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Limited (search only) 59th-60th:3/4 (1986-Mar/Apr 1987)
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University of California
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Limited (search only) v.59(1986)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.60,no.1-4 1987
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Indiana University
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Limited (search only) v.60 Jan.-Apr. 1987
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University of Iowa
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Limited (search only) v.61(1988)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.62(1989)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.63(1990)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.64(1991)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.65(1992)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.66 1993 incomplete
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University of Iowa
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Limited (search only) v.66(1993)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.67(1994)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.68(1995)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.69 1996
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University of Iowa
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Limited (search only) v.70 Jan.-June 1997
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University of Iowa
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Limited (search only) v.70 July-Dec. 1997
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University of Iowa
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Limited (search only) 129-134 (PT.I)
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University of California
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Limited (search only) 135-140 (PT.I)
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University of California
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