00713nam a2200169Ia 4500020001800000082001600018245006500034260003500099300001000134440002800144504012900172650002600301650005100327650004200378650004700420710007600467  a92-1-151176-3  a613.94 LEV- 0aLevels and trends of contraceptive use : as assessed in 1988  aNew YorkbUnited Nationsc1989  a129p.  aPopulation studies; 110  aContents: Acc. no. S52 ( Levels and trends of contraceptive use : as assessed in 2002), (2004), (lxv, 179p.) (92-1-151399-5)  aBirth control devices  aDeveloping countries - Population - Statistics  aContraceptives - Developing countries  aContraceptive drugs - Developing countries  aUnited Nations. Department of International Economic and Social Affairs