APA (7e ed.) Bronvermelding

World Health Organization. State of the world's vaccines and inmunization.

Chicago (17e ed.) Bronvermelding

World Health Organization. State of the World's Vaccines and Inmunization.

MLA (8e ed.) Bronvermelding

World Health Organization. State of the World's Vaccines and Inmunization.

Let op: Deze citaties zijn niet altijd 100% accuraat.