Mass Market Paperback
details (USA).(see also: eBook (Kindle) · Audible Audiobook · CD-ROM)
details (United Kingdom).(see also: eBook (Kindle) · CD-ROM · Audio CD)
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details (Canada).(see also: eBook (Kindle) · Audio CD · Audible Audiobook)
ISBN: 978-0-451-21928-2
ISBN-10: 0-451-21928-7
New American Library (Nal)