Limited (search only) v.23 Jan-June 1985
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Pennsylvania State University
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Limited (search only) v.23 July-Dec 1985
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Pennsylvania State University
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Limited (search only) v.24 Jan-June 1986
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Pennsylvania State University
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Limited (search only) v.24 July-Dec 1986
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Pennsylvania State University
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Limited (search only) v.25 Jan-June 1987
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Pennsylvania State University
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Limited (search only) v.25 July-Dec 1987
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Pennsylvania State University
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Limited (search only) v.26 Jan-June 1988
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Pennsylvania State University
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Limited (search only) v.26 July-Dec 1988
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Pennsylvania State University
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Limited (search only) v.27 Jan-June 1989
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Pennsylvania State University
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Limited (search only) v.27 July-Dec 1989
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Pennsylvania State University
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Limited (search only) v.28 Jan-June 1990
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Pennsylvania State University
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Limited (search only) v.28 July-Dec 1990
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Pennsylvania State University
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Limited (search only) v.29 Jan-June 1991
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Pennsylvania State University
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Limited (search only) v.29 July-Dec 1991
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Pennsylvania State University
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Limited (search only) v.30 Jan-Aug 1992
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Pennsylvania State University
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