APA (7th ed.) Citation

T, W., G, O., & M, T. (1990). An evaluation of Profamilia's female sterilization program in Colombia. Studies in family planning, 21(5), 251.

Chicago Style (17th ed.) Citation

T, Williams, Ojeda G, and Trías M. "An Evaluation of Profamilia's Female Sterilization Program in Colombia." Studies in Family Planning 21, no. 5 (1990): 251.

MLA (9th ed.) Citation

T, Williams, et al. "An Evaluation of Profamilia's Female Sterilization Program in Colombia." Studies in Family Planning, vol. 21, no. 5, 1990, p. 251.