Dyfyniad APA

Gillman, P., & Gillman, L. (2001). Everest: Eighty years of triumph and tragedy ([New ed.].). Little, Brown.

Dyfyniad Arddull Chicago

Gillman, Peter, and Leni Gillman. Everest: Eighty Years of Triumph and Tragedy. [New ed.]. Boston ; London: Little, Brown, 2001.

Dyfyniad MLA

Gillman, Peter, and Leni Gillman. Everest: Eighty Years of Triumph and Tragedy. [New ed.]. Little, Brown, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.