APA (7th ed.) Citation

Risbrough, V., Baker, D. G., Nievergelt, C., Litz, B., Nash, W., Perez, J., & Geyer, M. (2012, September). Prospective assessment of psychophysiological risk factors for PTSD. European Journal of Psychotraumatology.

Chicago Style (17th ed.) Citation

Risbrough, Victoria, Dewleen G. Baker, Caroline Nievergelt, Brett Litz, William Nash, J. Perez, and Mark Geyer. "Prospective Assessment of Psychophysiological Risk Factors for PTSD." European Journal of Psychotraumatology Sep. 2012.

MLA (9th ed.) Citation

Risbrough, Victoria, et al. "Prospective Assessment of Psychophysiological Risk Factors for PTSD." European Journal of Psychotraumatology, Sep. 2012.