TY - BOOK AU - Weeks,John Robert TI - Population: an introduction to concepts and issues SN - 0534061389 AV - HB871 .W43 1986 U1 - 304.6 19 PY - 1986/// CY - Belmont, Calif. PB - Wadsworth Pub. Co. KW - Population N1 - Includes index; Bibliography: p. 481-513 ER -