Bonington, C. (1976). Everest, the hard way (1st American ed.). Random House.
Lua i Stíl Chicago (17ú heag.)Bonington, Chris. Everest, the Hard Way. 1st American ed. New York: Random House, 1976.
Lua MLA (8ú heag.)Bonington, Chris. Everest, the Hard Way. 1st American ed. Random House, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.