Weeks, John R , Population : an introduction to concepts and issues John R. Weeks - 11th ed. - Belmont Wadsworth Cengage Learning 2011 - xxiv, 607 p: ill; 26 cm. - - . Includes bibliographical references and index ISBN: 9781111722210 = Nat. Bib. No.: Nat. Bib. Agency Control No.: Subjects--Meeting Names: Subjects--Index Terms: Factors affecting social behavior Population LC Class. No.: / Dewey Class. No.: 304.6 WEE