Cita APA

Collins, J. A., So, Y., Wilson, E. H., Wrixon, W., & Casper, R. F. (1984). Clinical factors affecting pregnancy rates among infertile couples.

Chicago Style Citation

Collins, J. A., Y. So, E. H. Wilson, W. Wrixon, i R. F. Casper. Clinical Factors Affecting Pregnancy Rates Among Infertile Couples. 1984.

Cita MLA

Collins, J. A., et al. Clinical Factors Affecting Pregnancy Rates Among Infertile Couples. 1984.