Gaya APA
Ladewig, P, W., London, M, L. (1990).
Essentials of maternal-newborn nursing (2nd ed.).
California:
Addison-Wesley Nursing.
Gaya MLA
Ladewig, Patricia, Wieland., London, Marcia, L..
"Essentials of maternal-newborn nursing".
2nd ed.
California:
Addison-Wesley Nursing,
1990.
Text.