La cooperacion economica multilateral en America Latina
La ganaderia en America Latina : situation, problemas y perspectivas : I - Colômbia, México, Uruguay y Venezuela : informe preparado con arreglo al programa conjunto
Socio-economic development and fertility decline in Sri Lanka : background paper prepared for the project on socio-economic development and fertility decline
Marital status and fertility : a comparative analysis of world fertility survey data for twenty-one countries