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판 14개, 최신 판부터
Brilliance Audio, 2015, mp3 cd, ISBN 9781501294648
Orion Publishing Group, Limited, 2011, ISBN 9780575109483
Findaway World, 2010, preloaded digital audio player, ISBN 9781441848659
Brilliance Audio, 2010, mp3 cd, ISBN 9781441814586
Brilliance Audio, 2010, ISBN 9781441814555
Brilliance Audio, 2010, ISBN 9781441814579
Underwood-Miller, 1994, ISBN 9780887331923
Baen Fantasy Books, 1986, ISBN 9780671655648
Pocket, 1982, 무선(페이퍼백), ISBN 9780671441845
Pocket, 1979, 무선(페이퍼백), ISBN 9780671831523
Pocket, 1977, 무선(페이퍼백), ISBN 9780671810924
Lancer PB #74-807, 1972, 무선(페이퍼백), ISBN 9780583120913
Lancer Books 74-807, 1971, 무선(페이퍼백), ISBN 9780447748079
Lancer Books, 1969, ISBN 9780447745474