Gaya APA
Leveno, K, J., Pendit, B, U. (2009).
Obstetri Williams: panduan ringkas = Williams manual of obstetrics (Ed. 21).
Jakarta:
EGC.
Gaya MLA
Leveno, Kenneth, J.., Pendit, Brahm, U..
"Obstetri Williams: panduan ringkas = Williams manual of obstetrics".
Ed. 21
Jakarta:
EGC,
2009.
Buku.