APA (7e ed.) Bronvermelding

De Grazia, A. (1962). The elements of political science (2a. ed.). Free.

Chicago (17e ed.) Bronvermelding

De Grazia, Alfred. The Elements of Political Science. 2a. ed. Nueva York: Free, 1962.

MLA (9e ed.) Bronvermelding

De Grazia, Alfred. The Elements of Political Science. 2a. ed. Free, 1962.