APA引文

Roll, R. (2012). Finding Ultra: Rejecting middle age, becoming one of the world's fittest men, and discovering myself. Blackstone Audio.

Chicago Style (17th ed.) Citation

Roll, Rich. Finding Ultra: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself. [Ashland, OR]: Blackstone Audio, 2012.

MLA引文

Roll, Rich. Finding Ultra: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself. Blackstone Audio, 2012.

警告：這些引文格式不一定是100％准確.