Addison Wesley Longman Group Limited
Edinburgh Gate,
Harlow, Essex CM20 2JE, England
and associated companies throughout the world.

Published in the United States of America
by Longman Publishing, New York.

© Longman Group Limited 1996

All rights reserved; no part of this publication may be
reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise without either the
prior written permission of the Publishers or a licence
permitting restricted copying in the United Kingdom issued
by the Copyright Licensing Agency Ltd,
90 Tottenham Court Road, London W1P 9HE.

First published 1996

ISBN 0 582 25542 2 CSD
ISBN 0 582 25543 0 PPR

British Library Cataloguing-in-Publication Data

A catalogue record for this book is
available from the British Library

Library of Congress Cataloging-in-Publication Data

Also available

Phototypeset by 20 in 9 1/2/11 1/2 Palatino
Produced by Longman Singapore Publishers Pte.
Printed in Singapore

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