APA (7th ed.) Citation

Friedman, W. (1956). An introduction to world politics (3rd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Friedman, Wolfgang. An Introduction to World Politics. 3rd ed. London: Macmillan, 1956.

MLA (8th ed.) Citation

Friedman, Wolfgang. An Introduction to World Politics. 3rd ed. Macmillan, 1956.