APA

Enien W. M., el Sahwy S., Harris C. P., Seif M. W. & Elstein M. (19961011). Human chorionic gonadotrophin and steroid concentrations in follicular fluid: the relationship to oocyte maturity and fertilization rates in stimulated and natural in-vitro fertilization cycles. : Human reproduction (Oxford, England).

Chicago

Enien W M, el Sahwy S, Harris C P, Seif M W and Elstein M. 19961011. Human chorionic gonadotrophin and steroid concentrations in follicular fluid: the relationship to oocyte maturity and fertilization rates in stimulated and natural in-vitro fertilization cycles. : Human reproduction (Oxford, England).

Harvard

Enien W. M., el Sahwy S., Harris C. P., Seif M. W. and Elstein M. (19961011). Human chorionic gonadotrophin and steroid concentrations in follicular fluid: the relationship to oocyte maturity and fertilization rates in stimulated and natural in-vitro fertilization cycles. : Human reproduction (Oxford, England).

MLA

Enien W M, el Sahwy S, Harris C P, Seif M W and Elstein M. Human chorionic gonadotrophin and steroid concentrations in follicular fluid: the relationship to oocyte maturity and fertilization rates in stimulated and natural in-vitro fertilization cycles. : Human reproduction (Oxford, England). 19961011.