Science Editors Professor Harold Stewart Kuofi Professor F. A. State Professor Mahjoub O. Taha Professor Ahmad Allam Professor Salman Sultan Associate Professor H. O. Sindi Copyright © 1997, 1996 I. A. Abu-Harb. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic, mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the author, except for the situation below which is permitted. For Reprinting Reprinting or reproducing this book as a whole on the condition that absolutely no change, addition, or omission is introduced is permitted free.
