Philippine News Agency & Mabasa, R. C. (2020). Russia ready to supply, invest on 'vaccine production' in PH. Manila Bulletin.
Čikaški stil citiranja (17. izdanje)Philippine News Agency i Roy C. Mabasa. "Russia Ready to Supply, Invest on 'Vaccine Production' in PH." Manila Bulletin 2020.
MLA način citiranja (9. izdanje)Philippine News Agency i Roy C. Mabasa. "Russia Ready to Supply, Invest on 'Vaccine Production' in PH." Manila Bulletin, 2020.
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