(1990). Selected annotated bibliography on essential drugs (1 ed.). World Health organization.
Chicago-referens (17:e uppl.)Selected Annotated Bibliography on Essential Drugs. 1 ed. Washington: World Health organization, 1990.
MLA-referens (9:e uppl.)Selected Annotated Bibliography on Essential Drugs. 1 ed. World Health organization, 1990.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.