World Health Organization. (2011). Guideline: Intermittent iron supplementation in preschool and school-age children. World Health Organization.
Cita Chicago Style (17a ed.)World Health Organization. Guideline: Intermittent Iron Supplementation in Preschool and School-age Children. Geneva: World Health Organization, 2011.
Cita MLA (9a ed.)World Health Organization. Guideline: Intermittent Iron Supplementation in Preschool and School-age Children. World Health Organization, 2011.
Precaución: Estas citas no son 100% exactas.