Cita APA (7th ed.)

Wanlass, L. C., & Gettell, R. G. (1953). Gettell's history of political thought (2nd ed.). George Allen & Unwin Ltd..

Cita Chicago (17th ed.)

Wanlass, Lawrence C., i Raymond Garfield Gettell. Gettell's History of Political Thought. 2nd ed. London: George Allen & Unwin Ltd., 1953.

Cita MLA (9th ed.)

Wanlass, Lawrence C., i Raymond Garfield Gettell. Gettell's History of Political Thought. 2nd ed. George Allen & Unwin Ltd., 1953.