(2002). Vacines and Biologicals Who vaccine preventable diasease monitoring system 2002 global summary. WHO.
Chicago Style (17th ed.) CitationVacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. Washington: WHO, 2002.
MLA引文Vacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. WHO, 2002.
警告:這些引文格式不一定是100%准確.