Yardley,D C M. (1974). Introduction to British constitutional law (4th ed.). Butteworths.
शिकागो स्टाइल उद्धरणYardley,D C M. Introduction to British Constitutional Law. 4th ed. London: Butteworths, 1974.
एमएलए उद्धरणYardley,D C M. Introduction to British Constitutional Law. 4th ed. Butteworths, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.