Paperback
details (UK).(see also: eBook (Kindle) · Audible Audiobook · eBook (Kindle))
details (United States).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe · Kindle Ausgabe)
details (Canada).(see also: eBook (Kindle) · eBook (Kindle) · eBook (Kindle) · eBook (Kindle))
ISBN: 978-0-435-29570-7
ISBN-10: 0-435-29570-5
Heinemann Educational Publishers · 1965