Gaya APA
Cunningham, F, G. et al (2005).
Obstetri Williams (= Williams obstetrics; 21/E) vol. 2 (21st ed.).
Jakarta:
EGC.
Gaya MLA
Cunningham, F., Gary. et al.
"Obstetri Williams (= Williams obstetrics; 21/E) vol. 2".
21st ed.
Jakarta:
EGC,
2005.
Text.