APA (7th ed.) Citation

Colville, J. R. (1981). Winston Churchill and his inner circle. Wyndham Books.

Chicago Style (17th ed.) Citation

Colville, John Rupert. Winston Churchill and His Inner Circle. New York, N.Y.: Wyndham Books, 1981.

MLA (9th ed.) Citation

Colville, John Rupert. Winston Churchill and His Inner Circle. Wyndham Books, 1981.