Cita APA (7a ed.)

(2002). Vacines and Biologicals Who vaccine preventable diasease monitoring system 2002 global summary. WHO.

Cita Chicago Style (17a ed.)

Vacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. Washington: WHO, 2002.

Cita MLA (9a ed.)

Vacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. WHO, 2002.