APA (7th ed.) Citation

Cunningham, F. G., & Williams, J. W. (2005). Williams obstetrics (Twenty-second edition.). McGraw-Hill Medical Pub. Division.

Chicago Style (17th ed.) Citation

Cunningham, F. Gary, and J. Whitridge Williams. Williams Obstetrics. Twenty-second edition. New York: McGraw-Hill Medical Pub. Division, 2005.

MLA (9th ed.) Citation

Cunningham, F. Gary, and J. Whitridge Williams. Williams Obstetrics. Twenty-second edition. McGraw-Hill Medical Pub. Division, 2005.