In The Zone , Peter Porterfield, 1996 Mountain Journeys , Edited by James P. Vermeulen, 1989 In the Throne Room of the Mountain Gods , Galen Rowell, 1986 Americans On Everest , James Ramsey Ullman, 1964 The Lost Explorer , Conrad Anker and David Roberts, 1999 The Epics of Everest , Leonard Wibberley,
1954 Clouds From Both Sides , Julie Tullis, 1987 Eiger Dreams , Jon Krakauer, ...