Velasco, M. M. (2004). Gov't sets mandatory use of ethanol blend. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin 2004.
Lua MLA (9ú heag.)Velasco, Myrna M. "Gov't Sets Mandatory Use of Ethanol Blend." Manila Bulletin, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.