Penguins 14 003028 X - The Fourth Side of the Triangle

Penguin Books Ltd, Harmondsworth, Middlesex, England Penguin Books Australia Ltd, Ringwood, Victoria, Australia

First published in the U.S.A. 1965 Published in Great Britain by Victor Gollancz 1965 Published in Penguin Books 1969 Copyright © Ellery Queen, 1965

Made and printed in Great Britain by Hunt Barnard & Co. Ltd, Aylesbury Set in Monotype Times

This book is sold subject to the conditions that it shall not, by way of trade or otherwise, be lent, re-sold, hired out, or otherwise circulated without the publisher’s prior consent in any form of binding or cover other than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser