World Health Organization. (2005). Control of yellow fever: Field Guide. Pan American Health Organization.
Chicago-viite (17. p.)World Health Organization. Control of Yellow Fever: Field Guide. Washington, D. C: Pan American Health Organization, 2005.
MLA-viite (8. p.)World Health Organization. Control of Yellow Fever: Field Guide. Pan American Health Organization, 2005.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.