Koerner, H., & Chase, A. W. (2014). Hal Koerner's field guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 miles and beyond. VeloPress.
Cita Chicago Style (17a ed.)Koerner, Hal, y Adam W. Chase. Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond. Boulder, Colorado: VeloPress, 2014.
Cita MLA (8a ed.)Koerner, Hal, y Adam W. Chase. Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond. VeloPress, 2014.
Precaución: Estas citas no son 100% exactas.