Penguin Books Ltd, Harmondsworth, Middlesex
U.S.A.: Penguin Books Inc, 3300 Clipper Mill Road, Baltimore 11, Md
Australia: Penguin Books Pty Ltd, 762 Whitehorse Road, Mitcham, Victoria
__
First published by Cassell 1950
Published in Pelican Books 1957
Made and printed in Great Britain by The Whitefriars Press ltd London and Tonbridge