Styl cytowania APA

Yardley, D. C. M. (1986). Principles of Administrative Law (2nd ed.). Butterworths.

Styl cytowania Chicago

Yardley, D. C. M. Principles of Administrative Law. 2nd ed. London: Butterworths, 1986.

Styl cytowania MLA

Yardley, D. C. M. Principles of Administrative Law. 2nd ed. Butterworths, 1986.