World Health Organization. Vaccines and Biologicals: Who vaccine-preventable diseases: monitoring system.
Chicago Style (17th ed.) CitationWorld Health Organization. Vaccines and Biologicals: Who Vaccine-preventable Diseases: Monitoring System.
MLA (8th ed.) CitationWorld Health Organization. Vaccines and Biologicals: Who Vaccine-preventable Diseases: Monitoring System.
Warning: These citations may not always be 100% accurate.