Penguin Books Ltd, Harmondsworth, Middlesex
Canada: Penguin Books (Canada) Ltd, 47 Green Street, Saint Lambert, Montreal, P.Q.
Australia: Penguin Books Pty Ltd, 762 Whitehorse Road, Mitcham, Victoria
South Africa: Penguin Books (S.A.) Pty Ltd, Gibraltar House,
Regents Road, Sea Point, Cape Town
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First published 1951
Published in Penguin Books (with some deletions) 1955
Made and printed in Great Britain by Butler and Tanner Ltd, Frome and London