Gaya APA

Reckmann, T., Cantagallo, A. (2013). The perfect stride : a runner's guide to healthier technique, performance, and speed . New York: Skyhorse Publishing.

Gaya MLA

Reckmann, Thomas., Cantagallo, Anette. "The perfect stride : a runner's guide to healthier technique, performance, and speed". New York: Skyhorse Publishing, 2013. Text.