South America, Central America, and the Carribean, 6th ed. Europa Publications Limited, 1999. Ref F1406.5.S68 A comprehensive survey of the political, social, and economic aspects of the vast region, this source book provides detailed statistics and directories for the major countries of the Latin American and Caribbean region. The Europa World Year Book. Ref JN1.E8501 Contains recent history, economic, political, statistical, and other information about countries and international organizations.
Berks has the latest edition.
Delury, George E., ed. Discusses the system of government and the parties of each country of the world. Derbyshire, J. Denis, and Ian Derbyshire. Political Systems of the World, 2d ed. St. Martin's Press, 1996.