Gaya APA
Lowdermilk, D, L., Perry, .
(2006).
Maternity Nursing
(
7th.ed.)
.
St.Louis:
Mosby .
Gaya MLA
Lowdermilk, Deitra, Leonard., Perry, .
"Maternity Nursing".
7th.ed.
St.Louis:
Mosby ,
2006.
Text.