Orig, T. S. (2002). Low investment in vaccines, immunization threatens global health, says report. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Orig, Thor S. "Low Investment in Vaccines, Immunization Threatens Global Health, Says Report." Manila Bulletin 2002.
Citatione MLA (9a ed.)Orig, Thor S. "Low Investment in Vaccines, Immunization Threatens Global Health, Says Report." Manila Bulletin, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.