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판 13개, 최신 판부터
Random House Publishing Group, 2002, E-book, ISBN 9780345454317
Tandem Library, 1999, School & Library Binding, ISBN 9780881031188
Del Rey, 1997, 무선(페이퍼백), ISBN 9780345418500
Orbit, 1991, ISBN 9781857230772
Turtleback Books Distributed by Demco Media, 1990, Turtleback, ISBN 9780606026475
Del Rey, 1986, 무선(포켓판), ISBN 9780345335555
Macdonald & Co., 1984, ISBN 9780356098135
Futura, 1984, 무선(페이퍼백), ISBN 9780708881033
Del Rey, 1983, 무선(포켓판), ISBN 9780345313218
Del Rey, 1981, 무선(포켓판), ISBN 9780345300744
Ballantine Books, 1979, ISBN 9780345350589
Del Rey, 1979, 무선(포켓판), ISBN 9780345272843
Del Rey, 1979, 무선(포켓판), ISBN 9780345287656