APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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