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판 14개, 최신 판부터
Perfection Learning, 2010, 도서관 제본, ISBN 9781606864500
Penguin USA, Inc., 2009, Electronic resource, ISBN 9781101066225
Puffin Books, 2009, ISBN 9780142413494
Tandem Library, 1999, School & Library Binding, ISBN 9780881033557
Recorded Books, Inc., 1998, 양장(하드커버), ISBN 9780812401066
Listening Library, 1991, 무선(페이퍼백), ISBN 9780807211267
Turtleback, 1990, 도서관 제본, ISBN 9780606044912
Puffin Books, 1990, 무선(페이퍼백), ISBN 9780140344431
Cornerstone Books, 1987, ISBN 9781557360724
Scholastic, 1986, 무선(페이퍼백), ISBN 9780590407250
Viking Press, 1985, 양장(하드커버), ISBN 9780670517411
Scholastic, 1981, ISBN 9780590423168
Scholastic Book Services, 1981, 무선(페이퍼백), ISBN 9780590321884
Scholastic Inc., 1981, 무선(페이퍼백), ISBN 9780590339476
