Παραπομπή APA

Wanlass, L. C., & Gettell, R. G. (1970). Gettell's history of political thought. London: G.Allen & Unwin.

Παραπομπή Chicago Style

Wanlass, Lawrence C., and Raymont Garfield Gettell. Gettell's History of Political Thought. London: G.Allen & Unwin, 1970.

Παραπομπή MLA

Wanlass, Lawrence C., and Raymont Garfield Gettell. Gettell's History of Political Thought. London: G.Allen & Unwin, 1970.

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