APA引文

Powell, B., & Lawlor, P. (2018). Relentless forward progress: A guide to running ultramarathons (Unabridged.). Tantor Media.

Chicago Style (17th ed.) Citation

Powell, Bryon, and Patrick Lawlor. Relentless Forward Progress: A Guide to Running Ultramarathons. Unabridged. Old Saybrook: Tantor Media, 2018.

MLA引文

Powell, Bryon, and Patrick Lawlor. Relentless Forward Progress: A Guide to Running Ultramarathons. Unabridged. Tantor Media, 2018.

警告：這些引文格式不一定是100％准確.