APA (7th ed.) Citation

Unsworth, W. (1981). Everest: A mountaineering history. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Unsworth, Walt. Everest: A Mountaineering History. Boston: Houghton Mifflin, 1981.

MLA (9th ed.) Citation

Unsworth, Walt. Everest: A Mountaineering History. Houghton Mifflin, 1981.

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