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판 16개, 최신 판부터
HMH Books for Young Readers, 2018, 보드북, ISBN 9781328485410
Houghton Mifflin Harcourt Publishing Company, 2014, ISBN 9780544385764
Clarion Books, 2014, ISBN 9780544227941
Houghton Mifflin Harcourt Publishing Company, 2014, ISBN 9780544365698
Houghton Mifflin Harcourt Publishing Company, 2014, ISBN 9781484420393
Houghton Mifflin Harcourt, 2009, ISBN 9780547238746
Tandem Library, 1999, School & Library Binding, ISBN 9780808573852
Scholastic, 1993, 무선(페이퍼백), ISBN 9780590120869
Perfection Learning Prebound, 1988, Unknown Binding, ISBN 9780812442731
World's Work, 1978, ISBN 9780437283306
World's Work, 1978, ISBN 9780434930685
Clarion Books, 1978, ISBN 9780618442140
Scholastic, 1978, ISBN 9780590118699
Seabury Press, 1976, ISBN 9780816431588
Clarion, 1976, ISBN 9780618051588
Clarion Books, 1976, ISBN 9780395287736