Cita APA
Davey, S. (2002). State of the world's vaccines and immunization. World Health Organization.
Citación estilo Chicago
Davey, Sheila. State of the World's Vaccines and Immunization. Geneva: World Health Organization, 2002.
Cita MLA
Davey, Sheila. State of the World's Vaccines and Immunization. World Health Organization, 2002.
Warning: These citations may not always be 100% accurate.