Gaya APA
Sweet, B, R.
(1991).
Mayes midwifery a textbookfor midwives
.
Jakarta :
Gramedia Pustaka Utama .
Gaya MLA
Sweet, Betty, R..
"Mayes midwifery a textbookfor midwives".
Jakarta :
Gramedia Pustaka Utama ,
1991.
Text.