Cita APA (7th ed.)

(1977). Political handbook of the world : 1977: Government, regional issues, and intergovernmental organizations as of January 1, 1977. McGraw-Hill.

Cita Chicago (17th ed.)

Political Handbook of the World : 1977: Government, Regional Issues, and Intergovernmental Organizations as of January 1, 1977. New York: McGraw-Hill, 1977.

Cita MLA (9th ed.)

Political Handbook of the World : 1977: Government, Regional Issues, and Intergovernmental Organizations as of January 1, 1977. McGraw-Hill, 1977.