APA aipamena

Ureña Bonilla, P. (2006). Sports-psychological recommendations for football players.

Chicago Style aipamena

Ureña Bonilla, Pedro. Sports-psychological Recommendations for Football Players. 2006.

MLA aipamena

Ureña Bonilla, Pedro. Sports-psychological Recommendations for Football Players. 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.