Rosero Bixby, L., Grimaldo Vásquez, C., Rovira, E., Lee, N. C., Oberle, M. W., & Watley, A. S. (1987). A case-control study of breast cancer and hormonal contraception in Costa Rica.
استشهاد بنمط شيكاغوRosero Bixby, Luis, Carmen Grimaldo Vásquez, Elizabeth Rovira, Nancy C. Lee, Mark W. Oberle, و Anne S. Watley. A Case-control Study of Breast Cancer and Hormonal Contraception in Costa Rica. 1987.
MLA استشهادRosero Bixby, Luis, et al. A Case-control Study of Breast Cancer and Hormonal Contraception in Costa Rica. 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.