Παραπομπή APA

Yardley, D. C. M. (1960). Introduction to British constitutional law. Butterworth.

Παραπομπή Chicago Style

Yardley, D C M. Introduction to British Constitutional Law. London: Butterworth, 1960.

Παραπομπή MLA

Yardley, D C M. Introduction to British Constitutional Law. Butterworth, 1960.