Mass Market Paperback
details (UK).(see also: Unbound)
details (United States).(see also: Leather Bound)
details (Italy).(see also: Copertina flessibile)
details (Spain - España).(see also: Tapa blanda)
ISBN: 978-0-14-000758-9
ISBN-10: 0-14-000758-X
Penguin · 1981