Weeks, John Robert, 1944- Population : an introduction to concepts and issues / John R. Weeks. - 6th ed. - Belmont : Wadsworth Pub. Co., 1996. - xxii, 682 p. : ill., maps ; 25 cm. Includes bibliographical references (p. 604-654) and indexes. ISBN: 0534264603 (acid-free paper) LCCN: 95021581 Subjects--Topical Terms: Population LC Class. No.: HB871 Dewey Class. No.: 304.6