Gaya APA

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

Gaya MLA

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