World Health Organization. (2012). Persisting pain in children: Important information for policy makers. World Health Organization.
Citação do estilo Chicago (17ª ed.)World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. Geneva, Switzerland: World Health Organization, 2012.
Citação MLA (8ª ed.)World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. World Health Organization, 2012.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.