MLA

Political Handbook of the World, 1991 : Governments and Intergovernmental Organizations As of June 1, 1991. Binghamton, N. Y.: CSA Publications ; State University of New York, 1991.

APA

(1991). Political handbook of the world, 1991 : governments and intergovernmental organizations as of June 1, 1991. Binghamton, N. Y.: CSA Publications ; State University of New York.

Chicago

Political Handbook of the World, 1991 : Governments and Intergovernmental Organizations As of June 1, 1991. Binghamton, N. Y.: CSA Publications ; State University of New York,, 1991.