APA استشهاد

Pennington, R. R. (1990). Company Law (6th ed.). Butterworths.

استشهاد بنمط شيكاغو

Pennington, Robert R. Company Law. 6th ed. London: Butterworths, 1990.

MLA استشهاد

Pennington, Robert R. Company Law. 6th ed. Butterworths, 1990.