Cita APA (7a ed.)

Friedmann, W. (1963). An introduction to world politics (4a. ed.). Macmillan.

Cita Chicago Style (17a ed.)

Friedmann, W. An Introduction to World Politics. 4a. ed. London: Macmillan, 1963.

Cita MLA (8a ed.)

Friedmann, W. An Introduction to World Politics. 4a. ed. Macmillan, 1963.