World Health Organization. (2005). Control of yellow fever: Field Guide. Pan American Health Organization.
Chicago-referens (17:e uppl.)World Health Organization. Control of Yellow Fever: Field Guide. Washington, D. C: Pan American Health Organization, 2005.
MLA-referens (8:e uppl.)World Health Organization. Control of Yellow Fever: Field Guide. Pan American Health Organization, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.