Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.