Gaya APA
Cunningham, .
(2013).
Obstetri Williams (2) Edisi 23
(
Volume 2 | Edisi 23)
.
Jakarta:
EGC.
Gaya MLA
Cunningham, .
"Obstetri Williams (2) Edisi 23".
Volume 2 | Edisi 23
Jakarta:
EGC,
2013.
Textbook.