(2002). Vacines and Biologicals Who vaccine preventable diasease monitoring system 2002 global summary. WHO.
Chicagoスタイル(17版)引用形式Vacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. Washington: WHO, 2002.
MLA(9版)引用形式Vacines and Biologicals Who Vaccine Preventable Diasease Monitoring System 2002 Global Summary. WHO, 2002.
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