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판 14개, 최신 판부터
Penguin USA, Inc., 2009, Electronic resource, ISBN 9781101156582
Puffin, 2004, ISBN 9780142401200
Dutton Children's Books, 2003, ISBN 9780525471370
Tandem Library, 1999, School & Library Binding, ISBN 9780881039719
Novel Units, 1999, 무선(페이퍼백), ISBN 9781561374649
Novel Units, 1998, 무선(페이퍼백), ISBN 9781561374656
Puffin, 1997, ISBN 9780140386646
Puffin Books, 1992, ISBN 9780140349917
ABC-CLIO, 1988, ISBN 9781557360311
Avon Books (P), 1984, ISBN 9780380679911
Perfection Learning Prebound, 1981, Unknown Binding, ISBN 9780812427813
Macmillan, 1979, ISBN 9780333266465
Dutton, 1978, ISBN 9780525423201
Scholastic, 1978, ISBN 9780439412810