Yardley, D. C. M. (1969). Introduction to British constitutional law (3rd ed.). Butterworths.
Dyfyniad Arddull ChicagoYardley, D C M. Introduction to British Constitutional Law. 3rd ed. London: Butterworths, 1969.
Dyfyniad MLAYardley, D C M. Introduction to British Constitutional Law. 3rd ed. Butterworths, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.