REPRESENTATIVES

For Continental Europe:
BOXERBOOKS, INC., Zurich

For the British Isles:
PRENTICE-HALL INTERNATIONAL, INC., London

For Canada:
HURTIG PUBLISHERS, Edmonton

For Australasia:
BOOK WISE (AUSTRALIA) PTY. LTD.
104-108 Sussex Street, Sydney 2000

Published by the Charles E. Tuttle Company, Inc.
of Rutland, Vermont and Tokyo, Japan
with editorial offices at
Osaki Shinagawa-ku, Tokyo 141-0032

© 1978 by Charles E. Tuttle Co., Inc.

All Rights Reserved

Library of Congress Catalog Card No. 77-83615
ISBN: 978-1-4629-1157-8 (ebook)

First printing, 1978

Printed in U.S.A.