APA (7e ed.) Bronvermelding
Davey, S. (2002). State of the world's vaccines and immunization. World Health Organization.
Chicago (17e ed.) Bronvermelding
Davey, Sheila. State of the World's Vaccines and Immunization. Geneva: World Health Organization, 2002.
MLA (9e ed.) Bronvermelding
Davey, Sheila. State of the World's Vaccines and Immunization. World Health Organization, 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.