World Health Organization. (1987). Who drug information (First edition.). World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Who Drug Information. First edition. Geneve: World Health Organization, 1987.
Citatione MLA (8a ed.)World Health Organization. Who Drug Information. First edition. World Health Organization, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.