O'Connell, D. G., Brewer, J. F., Man, T. H., Weldon, J. S. & Hinman, M. R. (2016). The effects of forced exhalation and inhalation, grunting, and valsalva maneuver on forehand force in collegiate tennis players. The Journal of Strength and Conditioning Research, 30 (2), 430-437. doi: 10.1519/JSC.0000000000001120
APA (7th ed.) CitationO'Connell, D. G., Brewer, J. F., Man, T. H., Weldon, J. S., & Hinman, M. R. (2016). The effects of forced exhalation and inhalation, grunting, and valsalva maneuver on forehand force in collegiate tennis players. The Journal of Strength and Conditioning Research, 30(2), 430-437.
Chicago Style (17th ed.) CitationO'Connell, D. G., J. F. Brewer, T. H. Man, J. S. Weldon, and M. R. Hinman. "The Effects of Forced Exhalation and Inhalation, Grunting, and Valsalva Maneuver on Forehand Force in Collegiate Tennis Players." The Journal of Strength and Conditioning Research 30, no. 2 (2016): 430-437.
MLA (9th ed.) CitationO'Connell, D. G., et al. "The Effects of Forced Exhalation and Inhalation, Grunting, and Valsalva Maneuver on Forehand Force in Collegiate Tennis Players." The Journal of Strength and Conditioning Research, vol. 30, no. 2, 2016, pp. 430-437.