APA (7th ed.) Citation

Churchill, R. S. (1965). Twenty-one Years. Weidenfeld & Nicolson.

Chicago Style (17th ed.) Citation

Churchill, Randolph S. Twenty-one Years. London: Weidenfeld & Nicolson, 1965.

MLA (9th ed.) Citation

Churchill, Randolph S. Twenty-one Years. Weidenfeld & Nicolson, 1965.

Warning: These citations may not always be 100% accurate.