Jr, H. L., 3rd, K. W., SS, S., HO, W., & HR, P. (1968). Effects of a sequential oral contraceptive on endometrial enzyme and carbohydrate histochemistry. American journal of obstetrics and gynecology, 102(6), 771. https://doi.org/10.1016/0002-9378(68)90503-6
Chicago Style (17th ed.) CitationJr, Hester LL, Kellett WW 3rd, Spicer SS, Williamson HO, and Pratt-Thomas HR. "Effects of a Sequential Oral Contraceptive on Endometrial Enzyme and Carbohydrate Histochemistry." American Journal of Obstetrics and Gynecology 102, no. 6 (1968): 771. https://doi.org/10.1016/0002-9378(68)90503-6.
MLA (9th ed.) CitationJr, Hester LL, et al. "Effects of a Sequential Oral Contraceptive on Endometrial Enzyme and Carbohydrate Histochemistry." American Journal of Obstetrics and Gynecology, vol. 102, no. 6, 1968, p. 771, https://doi.org/10.1016/0002-9378(68)90503-6.