APA (7th ed.) Citation

Unsworth, W. (1982). Everest. Penguin Books.

Chicago Style (17th ed.) Citation

Unsworth, Walt. Everest. Harmondsworth, Middlesex, England ; New York, N.Y., U.S.A.: Penguin Books, 1982.

MLA (8th ed.) Citation

Unsworth, Walt. Everest. Penguin Books, 1982.

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