Cita APA (7th ed.)

Cline, R. S. (1980). World power trends and U.S. foreign policy for the 1980's. Westview Press.

Cita Chicago (17th ed.)

Cline, Ray S. World Power Trends and U.S. Foreign Policy for the 1980's. Boulder, Colo: Westview Press, 1980.

Cita MLA (9th ed.)

Cline, Ray S. World Power Trends and U.S. Foreign Policy for the 1980's. Westview Press, 1980.