홈 / 책 찾기 / 판 고르기
판 7개, 최신 판부터
Wadsworth Cengage Learning, 2010, ISBN 9780495095880
Wadsworth Publishing, 2004, 무선(페이퍼백), ISBN 9780534564865
Wadsworth Thomson Learning, 1999, ISBN 9780534561697
Wadsworth Pub., 1996, ISBN 9780534506469
Wadsworth Pub. Co., 1993, ISBN 9780534178628
Wadsworth Pub. Co., 1990, ISBN 9780534121440
Wadsworth Pub. Co., 1986, ISBN 9780534055141