APA (7th ed.) Citation

TR, C., F, E., JS, M., GD, W., & MS, G. (1993). Estimating the duration of ongoing prevention trials. American journal of epidemiology, 137(7), 797. https://doi.org/10.1093/oxfordjournals.aje.a116740

Chicago Style (17th ed.) Citation

TR, Church, Ederer F, Mandel JS, Watt GD, and Geisser MS. "Estimating the Duration of Ongoing Prevention Trials." American Journal of Epidemiology 137, no. 7 (1993): 797. https://doi.org/10.1093/oxfordjournals.aje.a116740.

MLA (9th ed.) Citation

TR, Church, et al. "Estimating the Duration of Ongoing Prevention Trials." American Journal of Epidemiology, vol. 137, no. 7, 1993, p. 797, https://doi.org/10.1093/oxfordjournals.aje.a116740.