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Allyn and Bacon,
1997,
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Seyler, Dorothy U.
Allyn and Bacon,
1998,
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McQuade, Donald.
Bedford Books,
1997,
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Decker, Randall E.
HarperCollins College,
1995,
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Axelrod, Rise B.
St. Martin's Press,
1991,
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Bedford Books of St. Martin's Press,
1996,
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Hirschberg, Stuart
Allyn and Bacon,
1995,
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