Gaya APA
Cunningham, .
(2012).
Obstetri Williams Volume 1 Edisi 23
(
Vol.1 Edisi 23)
.
Jakata:
EGC.
Gaya MLA
Cunningham, .
"Obstetri Williams Volume 1 Edisi 23".
Vol.1 Edisi 23
Jakata:
EGC,
2012.
Text.