Organización Mundial de la Salud, & Organización Mundial de la Salud. (2011). Ensuring balance in national policies on controlled substances: Guidance for availability and accesibility of controlled medicines. Geneva, Switzerland: World Health Organization.
Chicago Style CitationOrganización Mundial de la Salud, and Organización Mundial de la Salud. Ensuring Balance in National Policies On Controlled Substances: Guidance for Availability and Accesibility of Controlled Medicines. Geneva, Switzerland: World Health Organization, 2011.
MLA CitationOrganización Mundial de la Salud, and Organización Mundial de la Salud. Ensuring Balance in National Policies On Controlled Substances: Guidance for Availability and Accesibility of Controlled Medicines. Geneva, Switzerland: World Health Organization, 2011.