Olds, T, Tomkinson, G, Leger, L & Cazorla, G. (2006). Worldwide variation in the performance of children and adolescents: An analysis of 109 studies of the 20-m shuttle run test in 37 countries. Journal of Sports Sciences, 24 (10), 1025-1038. doi: 10.1080/02640410500432193
APA (7th ed.) CitationOlds, T., Tomkinson, G., Leger, L., & Cazorla, G. (2006). Worldwide variation in the performance of children and adolescents: An analysis of 109 studies of the 20-m shuttle run test in 37 countries. Journal of Sports Sciences, 24(10), 1025-1038.
Chicago Style (17th ed.) CitationOlds, T., G. Tomkinson, L. Leger, and G. Cazorla. "Worldwide Variation in the Performance of Children and Adolescents: An Analysis of 109 Studies of the 20-m Shuttle Run Test in 37 Countries." Journal of Sports Sciences 24, no. 10 (2006): 1025-1038.
MLA (9th ed.) CitationOlds, T., et al. "Worldwide Variation in the Performance of Children and Adolescents: An Analysis of 109 Studies of the 20-m Shuttle Run Test in 37 Countries." Journal of Sports Sciences, vol. 24, no. 10, 2006, pp. 1025-1038.