Gaya APA
Celement, S.
(1998).
Psycological Preventive on Pregnancy and Childbirth
.
:
Shurchill Lifing Stone.
Gaya MLA
Celement, Sarah.
"Psycological Preventive on Pregnancy and Childbirth".
:
Shurchill Lifing Stone,
1998.
Textbook.