(1977). Political handbook of the world : 1977: Government, regional issues, and intergovernmental organizations as of January 1, 1977. McGraw-Hill.
Chicago-referens (17:e uppl.)Political Handbook of the World : 1977: Government, Regional Issues, and Intergovernmental Organizations as of January 1, 1977. New York: McGraw-Hill, 1977.
MLA-referens (9:e uppl.)Political Handbook of the World : 1977: Government, Regional Issues, and Intergovernmental Organizations as of January 1, 1977. McGraw-Hill, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.