TY - BOOK AU - Weeks,John Robert,1944- TI - Population: an introduction to concepts and issues SN - 0534101224 AV - HB871 .W43 1989 U1 - 304.6 22nd ed. PY - 1989/// CY - Belmont California PB - Wadswprth KW - Population N1 - Includes bibliographical references (p.505) and index ER -