홈 / 책 찾기 / 판 고르기
판 8개, 최신 판부터
Penguin, 1996, ISBN 9780140258264
HarperBusiness, 1996, ISBN 9780887308550
Harperbusiness, 1993, 무선(페이퍼백), ISBN 9780887306211
Penguin, 1993, ISBN 9780140171389
Harper Business, 1993, ISBN 9780060975357
Addison-Wesley, 1992, ISBN 9780201570328
Viking, 1992, ISBN 9780670845613
Harper Audio, 1992, Audio cassette, ISBN 9781559944908
