TY - BOOK TI - World population monitoring 2001: population,environment and development T2 - Population studies SN - 9211513596 AV - HB871 2001 PY - 1992/// CY - New York PB - United Nations KW - Population KW - Age distribution (Demography) N1 - At head of title: Department of International Ecoonomic and Social Affairs; "ST/ESA/SER.A/126." ER -