Gaya APA
Simkin, P.
(1991).
Pregnancy Childbirth And The Newborn The Complete Guide
(
1)
.
New York:
Meadowbrok.
Gaya MLA
Simkin, Penny.
"Pregnancy Childbirth And The Newborn The Complete Guide".
1
New York:
Meadowbrok,
1991.
.