APA (7th ed.) Citation

Cunningham, F. G., MacDonald, P. C., & Gant, N. F. (1996). Obstetricia de Williams.

Chicago Style (17th ed.) Citation

Cunningham, F. Gary, Paul C. MacDonald, and Norman F. Gant. Obstetricia De Williams. 1996.

MLA (9th ed.) Citation

Cunningham, F. Gary, et al. Obstetricia De Williams. 1996.