Penguin Books Ltd, Harmondsworth, Middlesex, England Penguin Books Pty Ltd, Ringwood, Victoria, Australia
First published in the U.S.A. by Ballantine Books 1953 Published in Great Britain by William Heinemann 1955 Published in Penguin Books 1965
Copyright © Frederick Pohl and C. M. Kornbluth 1953
Made and printed in Great Britain by Cox & Wyman Ltd, London, Reading, and Fakenham Set in Linotype Baskerville
This book is sold subject to the condition that it shall not, by way of trade, be lent, re-sold, hired out, or otherwise disposed of without the publisher’s consent in any form of binding or cover other than that in which it is published