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판 5개, 최신 판부터
Perfection Learning Prebound, 1991, Unknown Binding, ISBN 9780812498240
HarperTrophy, 1991, ISBN 9780064441452
Econo-Clad Books, 1988, School & Library Binding, ISBN 9780833560612
Harper & Row, 1988, ISBN 9780060224516
Scholastic, 1988, ISBN 9780590067898