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© 1996 by The Massachusetts Institute of Technology
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Library of Congress Cataloging-in-Publication Data
Structure and interpretation of computer programs / Harold Abelson
and Gerald Jay Sussman, with Julie Sussman. — 2nd ed.
p. cm. — (Electrical engineering and computer science
Includes bibliographical references and index.
ISBN 0-262-01153-0 (MIT Press hardcover)
ISBN 0-262-51087-1 (MIT Press paperback)
ISBN 0-07-000484-6 (McGraw-Hill hardcover)
1. Electronic digital computers — Programming. 2. LISP (Computer
program language) I. Sussman, Gerald Jay. II. Sussman, Julie.
III. Title. IV. Series: MIT electrical engineering and computer
005.13’3 — dc20 96-17756
Fourth printing, 1999