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판 7개, 최신 판부터
Little, Brown, 2011, ISBN 9780316098977
Tandem Library, 1999, School & Library Binding, ISBN 9780808595762
Horizons, 1991, ISBN 9780330313681
Perfection Learning Prebound, 1982, Unknown Binding, ISBN 9780812431193
Dell, 1980, ISBN 9780440918646
Little, Brown, 1979, ISBN 9780316195508
Little, Brown, 1979, ISBN 9780758789617