Hardcover
details (USA).(see also: Audio Cassette · Audio Cassette · eBook (Kindle))
details (UK).(see also: Audio Cassette)
details (Italy).(see also: Copertina flessibile)
details (Spain - España).(see also: Tapa blanda)
ISBN: 978-0-15-155127-9
ISBN-10: 0-15-155127-8
Harcourt Brace Jovanovich · 1971