Porter, Charles O. (Charles Orlando), 1919-2006
The struggle for democracy in Latin America
Macmillan, 1961
 Buku Teks
Cheibub, Jose Antonio
Presidentialism, parliamentarism, and democracy
Cambridge University Press, 2007
 Buku Teks
Latin America
edited by Eduardo P. Archetti
MacMillan Education, 1987
 Buku Teks
Szulc, Tad
Latin America
Atheneum, 1966
 Buku Teks
Szulc, Tad
Latin America
Atheneum, 1966
 Buku Teks