APA (7e ed.) Bronvermelding

Heater, D. B. (1967). Political ideas in the modern world (3d ed. rev.). Harrap.

Chicago (17e ed.) Bronvermelding

Heater, Derek Benjamin. Political Ideas in the Modern World. 3d ed. rev. London: Harrap, 1967.

MLA (9e ed.) Bronvermelding

Heater, Derek Benjamin. Political Ideas in the Modern World. 3d ed. rev. Harrap, 1967.