Gaya APA
Bobak, I, M, E.
(1992).
Maternity Nursing 4th Edition
(
4)
.
St. Louis:
Mosby Elsevier.
Gaya MLA
Bobak, Irene, M.,, Et.al..
"Maternity Nursing 4th Edition".
4
St. Louis:
Mosby Elsevier,
1992.
Teks (Text).