Citazione Stile APA (7a Edizione)

Yardley,D C M. (1986). Principles of administrative law (2nd ed.). Butterworths..

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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