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판 8개, 최신 판부터
South-Western College Pub., 1998, ISBN 9780538867702
South-Western College, 1995, ISBN 9780536844330
South-Western College Pub., 1995, ISBN 9780538844338
P.W.S.-Kent, 1992, ISBN 9780534983499
PWS-KENT Pub., 1992, ISBN 9780534925529
Kent Pub. Co., 1987, ISBN 9780534075309
Kent Pub. Co., 1984, ISBN 9780534029906
Kent Pub. Co., 1981, ISBN 9780534009588