Gaya APA

Speroff, L. et al (1999). Clinical Gynecologic Endocrinology and Infertility (6th ed). : 1999 Lippincott Williams & Wilkins.

Gaya MLA

Speroff, Leon. et al. "Clinical Gynecologic Endocrinology and Infertility". 6th ed : 1999 Lippincott Williams & Wilkins, 1999. Text.