(introductory text...)

Edited by Samuel M. Wangwe

London and New York
The United Nations University
INTECH Institute for New Technologies

Published in association with the UNU Press

First published 1995
by Routledge
11 New Fetter Lane, London EC4P 4EE

Simultaneously published in the USA and Canada
by Routledge
29 West 35th Street, New York, NY 10001

© UNU/INTECH

Typeset in Times by Florencetype Ltd. Stoodleigh, Devon
Printed and bound in Great Britain by T.J. Press (Padstow) Ltd. Padstow. Cornwall

All rights reserved. No part of this book may be reprinted reproduced or utilized in any form or by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying and recording, or in any information storage or retrieval system, without permission in writing from the publishers.

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

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ISBN 0-415-12691-6
ISSN 1359-7922