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판 10개, 최신 판부터
Thomson, Brooks/Cole, 2006, 스프링 제본, ISBN 9780495280699
Brooks Cole, 1999, ISBN 9780030265662
Brooks Cole, 1999, ISBN 9780030265617
Saunders College Pub., 1998, ISBN 9780030245190
Harcourt College Pub, 1997, 무선(페이퍼백), ISBN 9780155178632
Harcourt Brace College Publishers, 1990, ISBN 9780030254185
Saunders College Publishing, 1988, ISBN 9780030148149
Saunders College Publishing, 1987, 양장(하드커버), ISBN 9780030148132
Saunders College Pub., 1982, ISBN 9780030584244
Saunders, 1976, ISBN 9780721671215