Weeks, John Robert, 1944- Population : an introduction to concepts and issues John R. Weeks. - 3rd edition - Belmont, Calif. : Wadsworth Pub. Co., c1986. - xviii, 525 pages : illustration ; 25 cm. Includes index. Bibliography: p. 481-513. LCCN: 85026396 Subjects--Topical Terms: Population. LC Class. No.: HB871 W43 1986