World Health Organization. (1998). Postpartum care of the mother nad newborn: A practical guide. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Postpartum Care of the Mother Nad Newborn: A Practical Guide. Geneva: World Health Organization, 1998.
Cita MLA (8th ed.)World Health Organization. Postpartum Care of the Mother Nad Newborn: A Practical Guide. World Health Organization, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.