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Lua i Stíl Chicago (17ú heag.)Katigbak, Antonio F. "Oil Price Soars Above $45/661 for 1st Time." Philippine Star 2004.
Lua MLA (9ú heag.)Katigbak, Antonio F. "Oil Price Soars Above $45/661 for 1st Time." Philippine Star, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.