Powelson, John P.
Latin America : today's economic and social revolution
McGraw-Hill , 1964
 Buku Teks
Social aspects of economic development in Latin America vol.1-2
edited by Egbert De Vries, Jose Medina Echavarria
UNESCO, 1967
 Buku Teks
Echavarria, Jose Medina
Social aspects of economic development in Latin America a study
New York, N.Y., Unesco
 Buku Teks
Powelson, John P.
Latin America : today's economic and social revolution
McGraw-Hill , 1964
 Buku Teks
Latin America
edited by Eduardo P. Archetti
MacMillan Education, 1987
 Buku Teks