APA Style

Cunningham, F., J.Leveno, K. (2012). Obstetri Williams [Edisi 23 Vol.2] (23). Jakarta: EGC.

MLA Style

Cunningham, F.Gary., J.Leveno, Kenneth. "Obstetri Williams [Edisi 23 Vol.2]". 23 Jakarta: EGC, 2012. Text.