Weeks, John Robert, 1944- Population : An introduction to concepts and issues / John R. Weeks. - 3rd ed. - Belmont, Calif. : Wadsworth Pub. Co., c1986. - xviii, 525 p. : ill. ; 25 cm. Includes index. Bibliography: p. 481-513. ISBN: 0534061389 : $22.50 (est.) LCCN: 85026396 Subjects--Topical Terms: Population. LC Class. No.: HB871 / .W43 1986 Dewey Class. No.: 304.6 / WEE-P 1986 800664