Cita APA

Graham, R. A., Seif, M. W., Aplin, J. D., Li, T. C., Cooke, I. D., Rogers, A. W., & Dockery, P. (1990). An endometrial factor in unexplained infertility.

Chicago Style Citation

Graham, R A., M W. Seif, J D. Aplin, T C. Li, I D. Cooke, A W. Rogers, i P. Dockery. An Endometrial Factor in Unexplained Infertility. 1990.

Cita MLA

Graham, R A., et al. An Endometrial Factor in Unexplained Infertility. 1990.