Full view 1973-1974
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Cornell University
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Full view 1975-76
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University of Illinois at Urbana-Champaign
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Full view 1977-80
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University of Illinois at Urbana-Champaign
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Full view 1980-1984
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Cornell University
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Full view 1981-86
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University of Illinois at Urbana-Champaign
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Full view 1982-87 index
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University of California
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Full view 1985-1988
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Cornell University
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Full view 1987
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University of California
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Limited (search only) 1989-1992
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Cornell University
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Limited (search only) 1993-1994
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Cornell University
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Limited (search only) 1995:July/Aug.- Sept./Oct.
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Cornell University
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Limited (search only) 1995-1997
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Cornell University
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Limited (search only) 1998-1999
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Cornell University
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Limited (search only) 2000-2001 + Spec. reports and indexes
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Cornell University
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Limited (search only) 2002-2003
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Cornell University
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Limited (search only) 2004-2005
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Cornell University
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Limited (search only) 2006-2007
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Cornell University
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