Yardley,D C M. (1974). Introduction to British constitutional law (4th ed.). Butteworths.
Παραπομπή Chicago StyleYardley,D C M. Introduction to British Constitutional Law. 4th ed. London: Butteworths, 1974.
Παραπομπή MLAYardley,D C M. Introduction to British Constitutional Law. 4th ed. Butteworths, 1974.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.