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판 11개, 최신 판부터
Paw Prints 2008-07-30, 2008, 도서관 제본, ISBN 9781439504567
Scholastic en Espanol, 2003, ISBN 9780590481311
Turtleback Books Distributed by Demco Media, 2002, Turtleback, ISBN 9780606281942
Tandem Library, 1999, School & Library Binding, ISBN 9780833592262
Scholastic Trade, 1994, 무선(페이퍼백), ISBN 9780590252119
Scholastic, 1992, 도서관 제본, ISBN 9780780712720
Scholastic, Incorporated, 1992, ISBN 9780590420570
Macmillan Children's Books, 1992, ISBN 9780333566091
Macmillan Children's, 1990, ISBN 9780333540152
Scholastic Inc., 1990, ISBN 9780590420556
Turtleback, 1989, ISBN 9780606019453
