Gaya APA

MD, R, M, P. (1995). Clinical Obstetrics and Gynecology Preterm Labor (Volume 38). USA: Lippincott Williams & Wilkins.

Gaya MLA

MD, Roy, M., Pitkin,. "Clinical Obstetrics and Gynecology Preterm Labor". Volume 38 USA: Lippincott Williams & Wilkins, 1995. Text.