Limited (search only) 1971
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Pennsylvania State University
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Limited (search only) 1972
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Pennsylvania State University
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Pennsylvania State University
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Pennsylvania State University
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Pennsylvania State University
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Pennsylvania State University
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Limited (search only) 1978
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Pennsylvania State University
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Limited (search only) 1979
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Pennsylvania State University
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Limited (search only) 1982
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Pennsylvania State University
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Pennsylvania State University
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Limited (search only) 1988
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Pennsylvania State University
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Limited (search only) 1989
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Pennsylvania State University
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Pennsylvania State University
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Limited (search only) 1996
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Pennsylvania State University
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Limited (search only) 1997
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Pennsylvania State University
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