Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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