APA (7th ed.) Citation

Cunningham, F. G., MacDonald, P. C., & Norman, F. G. (1997). Williams obstetrics (20th edition.). Appleton & Lange.

Chicago Style (17th ed.) Citation

Cunningham, F. Gary, Paul C. MacDonald, and F. Gant Norman. Williams Obstetrics. 20th edition. Stamford: Appleton & Lange, 1997.

MLA (8th ed.) Citation

Cunningham, F. Gary, et al. Williams Obstetrics. 20th edition. Appleton & Lange, 1997.

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