TY - BOOK ED - United Nations. TI - Socio-economic development and fertility decline: an application of the Easterlin synthesis approach to data from the World Fertility Survey, Colombia, Costa Rica, Sri Lanka and Tunisia SN - 9211512352 PY - 1991/// CY - New York PB - United Nations KW - Contraception KW - statistics KW - Fertility KW - Socioeconomic factors KW - Colombia KW - Costa Rica KW - Sri Lanka KW - Tunisia ER -