Wolrld Health Organization. (2011). DDT in indoor residual spraying: Human health aspects. World Health Organization.
Cita Chicago Style (17a ed.)Wolrld Health Organization. DDT in Indoor Residual Spraying: Human Health Aspects. Geneva, Switzerland: World Health Organization, 2011.
Cita MLA (8a ed.)Wolrld Health Organization. DDT in Indoor Residual Spraying: Human Health Aspects. World Health Organization, 2011.
Precaución: Estas citas no son 100% exactas.