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판 8개, 최신 판부터
Wadsworth Publishing, 2006, 무선(페이퍼백), ISBN 9780495318637
Thomson/Wadsworth, 2006, ISBN 9780495090366
Thomson/Wadsworth, 2005, ISBN 9780534610067
Thomson/Wadsworth, 2003, ISBN 9780534610043
Wadsworth Thomson Learning, 2000, 무선(페이퍼백), ISBN 9780534580865
Wadsworth Pub., 2000, ISBN 9780534506643
Brooks/Cole Pub. Co., 1999, ISBN 9780534364601
Wadsworth Publishing Company, 1997, 무선(페이퍼백), ISBN 9780534348533