APA استشهاد

Barker, E. (1951). Essays on Government (2nd ed.). Oxford University.

استشهاد بنمط شيكاغو

Barker, Ernest. Essays on Government. 2nd ed. London: Oxford University, 1951.

MLA استشهاد

Barker, Ernest. Essays on Government. 2nd ed. Oxford University, 1951.