Gaya APA
Cunningham, F, G.
(2017).
Obstetri Williams, Edisi 23, Volume 1
(
23)
.
Jakarta:
EGC.
Gaya MLA
Cunningham, F., Gary.
"Obstetri Williams, Edisi 23, Volume 1".
23
Jakarta:
EGC,
2017.
Text.