by Paul Zindel
Paperback
details (UK).
(see also: Audible Audiobook · Audible Audiobook · eBook (Kindle))
details (USA).
(see also: Audible Audiobook · eBook (Kindle) · CD-ROM)
details (Germany).
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details (France).
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ISBN: 978-0-00-671111-7
ISBN-10: 0-00-671111-1
Collins · 1976