Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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