Gaya APA

al., K, J, L, E., Pendit, B, U. (2012). OBSTETRI WILLIAMS : PANDUAN RINGKAS, Ed.21 (Williams Manual of Obstetrics) (Cet.1.). Jakarta: EGC.

Gaya MLA

al., Kenneth, J., Leveno,, Et., Pendit, Brahm, U.. "OBSTETRI WILLIAMS : PANDUAN RINGKAS, Ed.21 (Williams Manual of Obstetrics)". Cet.1. Jakarta: EGC, 2012. Transparency.