Levitt, Steven D. Freakonomics : a rogue economist explores the hidden side of everything / Steven D. Levitt and Stephen J. Dubner. - 1st ed. - New York : William Morrow, c2005. - xii, 242 p. ; 24 cm. Includes bibliographical references and index. ISBN: 006073132X (acidfree paper) LCCN: 2004065478 Subjects--Topical Terms: Economics--Psychological aspects.Economics--Sociological aspects. LC Class. No.: HB74.P8 / L479 2005 Dewey Class. No.: 330