Etnier, J. L. (2009). Bring your "A" game: A young athlete's guide to mental toughness. University of North Carolina Press.
Chicago Style (17. basım) AtıfEtnier, Jennifer L. Bring Your "A" Game: A Young Athlete's Guide to Mental Toughness. Chapel Hill: University of North Carolina Press, 2009.
MLA (9th ed.) AtıfEtnier, Jennifer L. Bring Your "A" Game: A Young Athlete's Guide to Mental Toughness. University of North Carolina Press, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
