APA (7th ed.) Citation

Unsworth, W. (1993). Hold the heights : the foundations of mountaineering / Walt Unsworth: The foundations of mountaineering. Hodder & Stoughton.

Chicago Style (17th ed.) Citation

Unsworth, Walt. Hold the Heights : The Foundations of Mountaineering / Walt Unsworth: The Foundations of Mountaineering. London: Hodder & Stoughton, 1993.

MLA (9th ed.) Citation

Unsworth, Walt. Hold the Heights : The Foundations of Mountaineering / Walt Unsworth: The Foundations of Mountaineering. Hodder & Stoughton, 1993.

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