Gaya APA
Cunningham, et al. (2012).
Obstetri Williams: Edisi 23 Volume 1 (Ed. 23, Vol. 1).
Djakarta Perpustakaan Perguru:
EGC.
Gaya MLA
Cunningham, et al..
Obstetri Williams: Edisi 23 Volume 1.
Ed. 23, Vol. 1
Djakarta Perpustakaan Perguru:
EGC,
2012.
Text.