Orig, T. S. (2002). Low investment in vaccines, immunization threatens global health, says report. Manila Bulletin.
Čikaški stil citiranja (17. izdanje)Orig, Thor S. "Low Investment in Vaccines, Immunization Threatens Global Health, Says Report." Manila Bulletin 2002.
MLA način citiranja (9. izdanje)Orig, Thor S. "Low Investment in Vaccines, Immunization Threatens Global Health, Says Report." Manila Bulletin, 2002.
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