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6by Gabel, Christopher R. (Christopher Richard), 1954-Get full text
Published 1986
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8by Gabel, Christopher R. (Christopher Richard), 1954-Get full text
Published 1985
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10by Armstrong, Richard N. (Richard Nolan), 1946-Get full text
Published 1988
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11by Stewart, Richard W. (Richard Winship), 1951-Get full text
Published 1991
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