APA استشهاد

Benn, S. I., & Peters, R. (1959). Social Principles and the Democratic State. Allen & Unwin.

استشهاد بنمط شيكاغو

Benn, S I., و R.S Peters. Social Principles and the Democratic State. London: Allen & Unwin, 1959.

MLA استشهاد

Benn, S I., و R.S Peters. Social Principles and the Democratic State. Allen & Unwin, 1959.