APA (7th ed.) Citation

Khan, R. L., & Khan, Y. L. Obstetrics: Basic facts you must know.

Chicago Style (17th ed.) Citation

Khan, Rashid Latif, and Yousaf Latif Khan. Obstetrics: Basic Facts You Must Know.

MLA (9th ed.) Citation

Khan, Rashid Latif, and Yousaf Latif Khan. Obstetrics: Basic Facts You Must Know.

Warning: These citations may not always be 100% accurate.