O'Connell, D. G., Hinman, M. R., Hearne, K. F., Michael, Z. S. & Nixon, S. L. (2014). The effects of "grunting" on serve and forehand velocities in collegiate tennis players. The Journal of Strength and Conditioning Research, 28 (12), 3469-3475. doi: 10.1519/JSC.0000000000000604
APA (7th ed.) CitationO'Connell, D. G., Hinman, M. R., Hearne, K. F., Michael, Z. S., & Nixon, S. L. (2014). The effects of "grunting" on serve and forehand velocities in collegiate tennis players. The Journal of Strength and Conditioning Research, 28(12), 3469-3475.
Chicago Style (17th ed.) CitationO'Connell, D. G., M. R. Hinman, K. F. Hearne, Z. S. Michael, and S. L. Nixon. "The Effects of "Grunting" on Serve and Forehand Velocities in Collegiate Tennis Players." The Journal of Strength and Conditioning Research 28, no. 12 (2014): 3469-3475.
MLA (9th ed.) CitationO'Connell, D. G., et al. "The Effects of "Grunting" on Serve and Forehand Velocities in Collegiate Tennis Players." The Journal of Strength and Conditioning Research, vol. 28, no. 12, 2014, pp. 3469-3475.