APA-Zitierstil (7. Ausg.)

Sevenster, C. B., van der Merwe, J. V., & van Zyl, C. (1987). The incidence of polyspermy during in vitro fertilisation. A study at the H. F. Verwoerd Hospital, Pretoria. South African medical journal, 72(7), 480.

Chicago-Zitierstil (17. Ausg.)

Sevenster, C B., J V. van der Merwe, und C. van Zyl. "The Incidence of Polyspermy During in Vitro Fertilisation. A Study at the H. F. Verwoerd Hospital, Pretoria." South African Medical Journal 72, no. 7 (1987): 480.

MLA-Zitierstil (9. Ausg.)

Sevenster, C B., et al. "The Incidence of Polyspermy During in Vitro Fertilisation. A Study at the H. F. Verwoerd Hospital, Pretoria." South African Medical Journal, vol. 72, no. 7, 1987, p. 480.