World Health Organization. (1981). Infant and young child feeding current issues. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Infant and Young Child Feeding Current Issues. Geneva: World Health Organization, 1981.
Cita MLA (8th ed.)World Health Organization. Infant and Young Child Feeding Current Issues. World Health Organization, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.