TY - BOOK AU - "UNITED NATIONS, INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)" ED - "UNITED NATIONS, INTERNATIONAL ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)" TI - Recent levels and trends of contraceptive use as assessed in 1983 U1 - "Y:5:5(Y)s, M3/UN" PY - 1983/// CY - New PB - York United Nations KW - Demography ER -