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판 4개, 최신 판부터
Management Pocketbooks, 2003, 무선(페이퍼백), ISBN 9781903776162
Management Pocketbooks, 2002, ISBN 9781903776025
Management Pocket Books, 1999, 무선(페이퍼백), ISBN 9781579220204
Management Pocketbooks, 1996, ISBN 9781870471374