Columbia subject headings:
Africa--Economic conditions--1960-
Agriculture--Economic aspects--Africa.
Agriculture--Economic aspects--Latin America.
Latin America--Economic conditions--1982-
Harvard subject headings:
Africa--Economic conditions--1960-
Agriculture--Economic aspects--Africa
Agriculture--Economic aspects--Latin America
Latin America--Economic conditions--1982-
Princeton subject headings:
Africa--Economic conditions--1960-
Agriculture--Economic aspects--Africa.
Agriculture--Economic aspects--Latin America.
Latin America--Economic conditions--1982-