TY - GEN ED - United Nations. Department of International Economic and Social Affairs. TI - Step-by-step guide to the estimation of child mortality T2 - POPULATION studies ; no.107 PY - 1990/// CY - New York : PB - United Nations KW - Data collection KW - Methods KW - Infant mortality N1 - Accompanied by:QFIVE : United Nations program for child mortality estimation ER -