Mercedes, J. L. (2001). Tallying ecological carpet bombing costs. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Mercedes, Juan L. "Tallying Ecological Carpet Bombing Costs." Philippine Star 2001.
Lua MLA (9ú heag.)Mercedes, Juan L. "Tallying Ecological Carpet Bombing Costs." Philippine Star, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.