APA (7th ed.) Citation

A, S., G, S., & EP, S. (2013). Ausdauer & Psyche. SportMed Verlag.

Chicago Style (17th ed.) Citation

A, Spengler, Schneider G, and Schröder EP. Ausdauer & Psyche. SportMed Verlag, 2013.

MLA (9th ed.) Citation

A, Spengler, et al. Ausdauer & Psyche. SportMed Verlag, 2013.