APA (7th ed.) Citation

Pye, D. R. (1927). George Leigh Mallory: A memoir. Oxford University Press.

Chicago Style (17th ed.) Citation

Pye, David R. George Leigh Mallory: A Memoir. London: Oxford University Press, 1927.

MLA (9th ed.) Citation

Pye, David R. George Leigh Mallory: A Memoir. Oxford University Press, 1927.