Porter, J. M., Wu, W. F. W., Crossley, R. M., Knopp, S. W. & Campbell, O. C. (2015). Adopting an external focus of attention improves sprinting performance in low-skilled sprinters. The Journal of Strength and Conditioning Research, 29 (4), 947-953. doi: 10.1097/JSC.0000000000000229
APA (7th ed.) CitationPorter, J. M., Wu, W. F. W., Crossley, R. M., Knopp, S. W., & Campbell, O. C. (2015). Adopting an external focus of attention improves sprinting performance in low-skilled sprinters. The Journal of Strength and Conditioning Research, 29(4), 947-953.
Chicago Style (17th ed.) CitationPorter, J. M., W. F. W. Wu, R. M. Crossley, S. W. Knopp, and O. C. Campbell. "Adopting an External Focus of Attention Improves Sprinting Performance in Low-skilled Sprinters." The Journal of Strength and Conditioning Research 29, no. 4 (2015): 947-953.
MLA (9th ed.) CitationPorter, J. M., et al. "Adopting an External Focus of Attention Improves Sprinting Performance in Low-skilled Sprinters." The Journal of Strength and Conditioning Research, vol. 29, no. 4, 2015, pp. 947-953.