DVS Edition Citation

Carvalho, J, Macas, V & Sampaio, J. (2004). Game activity profile of football referees according to different levels of competition. Journal of Sports Sciences, 22 (6), 502-503.

APA (7th ed.) Citation

Carvalho, J., Macas, V., & Sampaio, J. (2004). Game activity profile of football referees according to different levels of competition. Journal of Sports Sciences, 22(6), 502-503.

Chicago Style (17th ed.) Citation

Carvalho, J., V. Macas, and J. Sampaio. "Game Activity Profile of Football Referees According to Different Levels of Competition." Journal of Sports Sciences 22, no. 6 (2004): 502-503.

MLA (9th ed.) Citation

Carvalho, J., et al. "Game Activity Profile of Football Referees According to Different Levels of Competition." Journal of Sports Sciences, vol. 22, no. 6, 2004, pp. 502-503.