Gardner, Martin, 1914- Whys & wherefores/ Martin Gardner. - Chicago: University of Chicago Press, 1989. - ix, 261 p.: ill.; 24 cm. Includes bibliographies. ISBN: 0226282457 (alk. paper) LCCN: 88020624 Nat. Bib. No.: GB89-56142 Subjects--Topical Terms: American essays. Dewey Class. No.: 510