Published by Woodhead Publishing Limited abington hall. abington Cambridge CB1 6AH, England First published 1996 Reed Educational and Professional Publishing Ltd Reprinted 1998 Woodhead Publishing Limited C 1998. Woodhead Publishing ltd All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Librar ISBN 1855733595 Printed in Great Britain by Antony Rowe Ltd, Chippenham, wiltshirePublished by Woodhead Publishing Limited Abington Hall, Abington Cambridge CB 1 6AH, England First published 1996 Reed Educational and Professional Publishing Ltd Reprinted 1998 Woodhead Publishing Limited 0 1998, Woodhead Publishing Ltd All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library. ISBN 1 85573 359 5 Printed in Great Britain by Antony Rowe Ltd, Chippenham, Wiltshire