Zimbardo, Philip G. Psychology : core concepts / Philip G. Zimbardo, Ann L. Weber, Robert L. Johnson. - 4th ed. - Boston : Allyn and Bacon, 2003. - 1 v. (various pagings) : ill. ; 28 cm. Includes bibliographical references and index. ISBN: 0205356605 RM235.85 Subjects--Topical Terms: Psychology.