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2by Liebert, Robert M. (Robert Mandel), 1942-
Published 1998Edition: 8th ed..Other Authors: '; “...Liebert, Robert M. (Robert Mandel), 1942-...”
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8by Baron, Robert A.Other Authors: '; “...Liebert, Robert M. (Robert Mandel), 1942-...”
Published 1971
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9by Neale, John M. (John Maxwell), 1943-
Published 1986Edition: 3rd ed.Other Authors: '; “...Liebert, Robert M. (Robert Mandel), 1942-...”
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10by Harris, Judith RichOther Authors: '; “...Liebert, Robert M. (Robert Mandel), 1942-...”
Published 1992
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