Gaya APA

Cunningham, F. Gary [et.al]. (2013). Obstetri williams (Ed. 23). Jakarta: EGC.

Gaya Chicago

Cunningham, F. Gary [et.al]. Obstetri williams. Ed. 23 Jakarta: EGC, 2013. Text.

Gaya MLA

Cunningham, F. Gary [et.al]. Obstetri williams. Ed. 23 Jakarta: EGC, 2013. Text.

Gaya Turabian

Cunningham, F. Gary [et.al]. Obstetri williams. Ed. 23 Jakarta: EGC, 2013. Print.