홈 / 책 찾기 / 판 고르기
판 4개, 최신 판부터
South-Western Educational Pub., 1996, ISBN 9780538628402
International Thomson Publishing, 1995, 무선(페이퍼백), ISBN 9780538628419
International Thomson Publishing, 1994, 무선(페이퍼백), ISBN 9780538628440
South-Western Pub. Co., 1990, ISBN 9780538112116
