홈 / 책 찾기 / 판 고르기
판 5개, 최신 판부터
Random House Business Books, 1999, ISBN 9780712680356
Ballantine Pub. Group, 1998, ISBN 9780449002827
Ballantine Books, 1992, ISBN 9780449907054
Harmony Books, 1990, ISBN 9780517582831
Development Dimensions International Press, 1989, ISBN 9780962348303
