Gaya APA

Cunningham, F, G. (2014). Obstetri Williams Edisi 23 Vol. 1 (Edisi 23 Vol. 1). Jakarta: EGC.

Gaya MLA

Cunningham, F., Garry. "Obstetri Williams Edisi 23 Vol. 1". Edisi 23 Vol. 1 Jakarta: EGC, 2014. Text.