Lua APA (7ú heag.)

Salviejo, W. A. (1998). Preserving the Ifugao rice terraces. Manila Times.

Lua i Stíl Chicago (17ú heag.)

Salviejo, Wilson Agante. "Preserving the Ifugao Rice Terraces." Manila Times 1998.

Lua MLA (9ú heag.)

Salviejo, Wilson Agante. "Preserving the Ifugao Rice Terraces." Manila Times, 1998.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.