Cita APA

Kay, D. A. 1. (1967). The united nations political system. New York, New York: Willey.

Citación estilo Chicago

Kay, David A. 1940-. The United Nations Political System. New York, New York: Willey, 1967.

Cita MLA

Kay, David A. 1940-. The United Nations Political System. New York, New York: Willey, 1967.