Cita APA (7a ed.)

World Health Organization. (2011). Ensuring balance in national policies on control substances: Guidelines for availability and accessibility of controlled medicines. World Health Organization.

Cita Chicago Style (17a ed.)

World Health Organization. Ensuring Balance in National Policies on Control Substances: Guidelines for Availability and Accessibility of Controlled Medicines. Geneva, Switzerland: World Health Organization, 2011.

Cita MLA (8a ed.)

World Health Organization. Ensuring Balance in National Policies on Control Substances: Guidelines for Availability and Accessibility of Controlled Medicines. World Health Organization, 2011.