Thurber, D. (1997). Poverty, erosion threaten famed Banaue rice terraces. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Thurber, David. "Poverty, Erosion Threaten Famed Banaue Rice Terraces." Manila Bulletin 1997.
Lua MLA (9ú heag.)Thurber, David. "Poverty, Erosion Threaten Famed Banaue Rice Terraces." Manila Bulletin, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.