D'Ottavio, S & Castagna, C. (1999). Activity profile of young soccer players during match-play. Journal of Sports Sciences, London 17(1999)10, S. 826..
APA (7th ed.) CitationD'Ottavio, S., & Castagna, C. (1999). Activity profile of young soccer players during match-play Journal of Sports Sciences.
Chicago Style (17th ed.) CitationD'Ottavio, S., and C. Castagna. "Activity Profile of Young Soccer Players During Match-play." Journal of Sports Sciences 1999.
MLA (9th ed.) CitationD'Ottavio, S., and C. Castagna. "Activity Profile of Young Soccer Players During Match-play." Journal of Sports Sciences, 1999.
Warning: These citations may not always be 100% accurate.