APA (7th ed.) Citation

(1993). Williams obstetrics (19. ed.). Appleton & Lange.

Chicago Style (17th ed.) Citation

Williams Obstetrics. 19. ed. Norwalk, Conn: Appleton & Lange, 1993.

MLA (9th ed.) Citation

Williams Obstetrics. 19. ed. Appleton & Lange, 1993.

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