Cita APA (7a ed.)

OBSTETRI WILLIAMS & CUNNINGHAM, F. G. [. (2006). Obstetri williams vol.1.-- ed.21. EGC.

Cita Chicago Style (17a ed.)

OBSTETRI WILLIAMS y F. Gary [et.al] CUNNINGHAM. Obstetri Williams Vol.1.-- Ed.21. Jakarta: EGC, 2006.

Cita MLA (9a ed.)

OBSTETRI WILLIAMS y F. Gary [et.al] CUNNINGHAM. Obstetri Williams Vol.1.-- Ed.21. EGC, 2006.