APA (7th ed.) Citation

Churchill, R. S. (1965). Twenty-one years. Weindenfeld and Nicolson.

Chicago Style (17th ed.) Citation

Churchill, Randolph S. Twenty-one Years. London: Weindenfeld and Nicolson, 1965.

MLA (9th ed.) Citation

Churchill, Randolph S. Twenty-one Years. Weindenfeld and Nicolson, 1965.

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