APA (7th ed.) Citation

Cook, P. J., Pollack, H. A., & Parker, S. T. (2015). Sources of guns to dangerous people: What we learn by asking them. Preventive medicine, 79, 28-36. doi:10.1016/j.ypmed.2015.04.021

Chicago Style (17th ed.) Citation

Cook, Philip J., Harold A. Pollack, and Susan T. Parker. "Sources of Guns to Dangerous People: What We Learn by Asking Them." Preventive Medicine 79 (2015): 28-36. https://doi.org/10.1016/j.ypmed.2015.04.021.

MLA (9th ed.) Citation

Cook, Philip J., et al. "Sources of Guns to Dangerous People: What We Learn by Asking Them." Preventive Medicine, vol. 79, 2015, pp. 28-36, https://doi.org/10.1016/j.ypmed.2015.04.021.