Roll, R. (2012). Finding Ultra: Rejecting middle age, becoming one of the world's fittest men, and discovering myself. Blackstone Audio.
Цитирование в стиле Чикаго (17-е изд.)Roll, Rich. Finding Ultra: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself. [Ashland, OR]: Blackstone Audio, 2012.
Цитирование MLA (8-е изд.)Roll, Rich. Finding Ultra: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself. Blackstone Audio, 2012.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.