World Health Organization. (2011). Ensuring balance in national policies on control substances: Guidelines for availability and accessibility of controlled medicines. World Health Organization.
Cytowanie według stylu Chicago (wyd. 17)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.
Cytowanie według stylu MLA (wyd. 8)World Health Organization. Ensuring Balance in National Policies on Control Substances: Guidelines for Availability and Accessibility of Controlled Medicines. World Health Organization, 2011.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..