De Vera-Ruiz, E. Address plastic pollution, DENR appeals. Manila Bulletin.
Čikaški stil citiranja (17. izdanje)De Vera-Ruiz, Ellalyn. "Address Plastic Pollution, DENR Appeals." Manila Bulletin .
MLA način citiranja (9. izdanje)De Vera-Ruiz, Ellalyn. "Address Plastic Pollution, DENR Appeals." Manila Bulletin, .
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