Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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