APA (7th ed.) Citation

Yardley, D. C. (1978). Introduction to British constitutional law (5. ed.). Butterworth.

Chicago Style (17th ed.) Citation

Yardley, David C. Introduction to British Constitutional Law. 5. ed. London: Butterworth, 1978.

MLA (9th ed.) Citation

Yardley, David C. Introduction to British Constitutional Law. 5. ed. Butterworth, 1978.