Paperback
details (United Kingdom).(see also: Audible Audiobook)
details (United States).(see also: Audible Audiobook · Audio CD Library Binding)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-14-003822-4
ISBN-10: 0-14-003822-1
Penguin · 1974