APA (7e ed.) Bronvermelding

World Health Organization. Vaccines and Biologicals: Who vaccine-preventable diseases: monitoring system.

Chicago (17e ed.) Bronvermelding

World Health Organization. Vaccines and Biologicals: Who Vaccine-preventable Diseases: Monitoring System.

MLA (8e ed.) Bronvermelding

World Health Organization. Vaccines and Biologicals: Who Vaccine-preventable Diseases: Monitoring System.

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