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판 7개, 최신 판부터
Tandem Library, 2000, School & Library Binding, ISBN 9780613717878
Little, Brown, 2000, 무선(페이퍼백), ISBN 9780316399876
Hodder Children's Books, 2000, 무선(페이퍼백), ISBN 9780340757383
Hodder and Stoughton, 1993, ISBN 9780340586327
Hodder Children's Books, 1991, ISBN 9780340558843
Little, Brown, 1990, ISBN 9780316418867
Hodder and Stoughton, 1989, ISBN 9780340501252