World Health Organization. (2003). Pregnancy, childbirth, postpartum and newborn care: A guide for essential practice. World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Pregnancy, Childbirth, Postpartum and Newborn Care: A Guide for Essential Practice. Geneva: World Health Organization, 2003.
Παραπομπή σε μορφή MLA (8th εκδ.)World Health Organization. Pregnancy, Childbirth, Postpartum and Newborn Care: A Guide for Essential Practice. World Health Organization, 2003.
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