APA (7e ed.) Bronvermelding

Cowling, M. (1963). The nature and limits of political science. University Press.

Chicago (17e ed.) Bronvermelding

Cowling, Maurice. The Nature and Limits of Political Science. Cambridge [Eng.]: University Press, 1963.

MLA (9e ed.) Bronvermelding

Cowling, Maurice. The Nature and Limits of Political Science. University Press, 1963.