Limited (search only) v.3-4 (incomplete)
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University of California
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Limited (search only) v.3(1969)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.4(1970)
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University of Illinois at Urbana-Champaign
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Limited (search only) v.5 1971
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University of California
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Limited (search only) v.6 1972
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University of California
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Limited (search only) v.6 1972
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University of Michigan
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Limited (search only) v.7 1973
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University of California
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Limited (search only) v.8 1974
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University of California
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Limited (search only) v.9 1975
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University of California
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Limited (search only) v.10 1976
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University of California
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Limited (search only) v.11 no.1-3
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University of California
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