Zafra, A. O., Ortega, E, Ato, M, Lozano, F. J., de los Fayos, E. G. & Ortin, F. J. (2010). Infrigements of the laws of the game and youth soccer categories: A descriptive study. Journal of Human Sport & Exercise, 5 (1), 71-83. Zugriff am 24.05.2011 unter http://www.jhse.ua.es/index.php/jhse/article/viewArticle/89
APA-Zitierstil (7. Ausg.)Zafra, A. O., Ortega, E., Ato, M., Lozano, F. J., de los Fayos, E. G., & Ortin, F. J. (2010). Infrigements of the laws of the game and youth soccer categories: A descriptive study. Journal of Human Sport & Exercise, 5(1), 71-83.
Chicago-Zitierstil (17. Ausg.)Zafra, A. O., E. Ortega, M. Ato, F. J. Lozano, E. G. de los Fayos, und F. J. Ortin. "Infrigements of the Laws of the Game and Youth Soccer Categories: A Descriptive Study." Journal of Human Sport & Exercise 5, no. 1 (2010): 71-83.
MLA-Zitierstil (9. Ausg.)Zafra, A. O., et al. "Infrigements of the Laws of the Game and Youth Soccer Categories: A Descriptive Study." Journal of Human Sport & Exercise, vol. 5, no. 1, 2010, pp. 71-83.