World Health Organization. Technical Working Group. (1996). Care in normal birth: A practical guide. Maternal and Newborn Health/Safe Motherhood Unit, Family Reproductive Health, World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Technical Working Group. Care in Normal Birth: A Practical Guide. Geneva: Maternal and Newborn Health/Safe Motherhood Unit, Family Reproductive Health, World Health Organization, 1996.
Cita MLA (9th ed.)World Health Organization. Technical Working Group. Care in Normal Birth: A Practical Guide. Maternal and Newborn Health/Safe Motherhood Unit, Family Reproductive Health, World Health Organization, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.