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판 7개, 최신 판부터
Scholastic, Incorporated, 2013, ISBN 9780545310635
Orchard Books, 2012, ISBN 9781408318782
Paw Prints, 2009, ISBN 9781439587362
Scholastic, 2008, ISBN 9780545054751
Hachette Children's Group, 2007, ISBN 9781846169236
Hachette Children's Group, 2007, ISBN 9781846164682
Orchard Books, 2006, 무선(페이퍼백), ISBN 9781846161759