DVS Edition Citation

Helsen, W. F., van Winckel, J. & Williams, A. M. (2005). The relative age effect in youth soccer across Europe. Journal of Sports Sciences, 23 (6), 629-636. doi: 10.1080/02640410400021310

APA (7th ed.) Citation

Helsen, W. F., van Winckel, J., & Williams, A. M. (2005). The relative age effect in youth soccer across Europe. Journal of Sports Sciences, 23(6), 629-636.

Chicago Style (17th ed.) Citation

Helsen, W. F., J. van Winckel, and A. M. Williams. "The Relative Age Effect in Youth Soccer Across Europe." Journal of Sports Sciences 23, no. 6 (2005): 629-636.

MLA (9th ed.) Citation

Helsen, W. F., et al. "The Relative Age Effect in Youth Soccer Across Europe." Journal of Sports Sciences, vol. 23, no. 6, 2005, pp. 629-636.