Hardcover
details (UK).
details (USA).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch · Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-521-07155-0
ISBN-10: 0-521-07155-0
Cambridge University Press · 1935