Ulrich, M., & Verner, A. (2019). Running on empty: An ultramarathoner's story of love, loss, and a record-setting run across america (Unabridged.). Tantor Media.
Cita Chicago Style (17a ed.)Ulrich, Marshall, y Adam Verner. Running on Empty: An Ultramarathoner's Story of Love, Loss, and a Record-setting Run Across America. Unabridged. Old Saybrook: Tantor Media, 2019.
Cita MLA (8a ed.)Ulrich, Marshall, y Adam Verner. Running on Empty: An Ultramarathoner's Story of Love, Loss, and a Record-setting Run Across America. Unabridged. Tantor Media, 2019.
Precaución: Estas citas no son 100% exactas.