Paperback
details (UK).(see also: Audible Audiobook · eBook (Kindle))
details (USA).(see also: eBook (Kindle) · Audible Audiobook)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-00-216828-1
ISBN-10: 0-00-216828-6
Totem Books · 1981