Lua APA (7ú heag.)

Philippine Council for Agriculture and Resources Research. (1977). The Philippines recommends for soil conservation 1977. PCARR.

Lua i Stíl Chicago (17ú heag.)

Philippine Council for Agriculture and Resources Research. The Philippines Recommends for Soil Conservation 1977. Los Banos, Laguna: PCARR, 1977.

Lua MLA (9ú heag.)

Philippine Council for Agriculture and Resources Research. The Philippines Recommends for Soil Conservation 1977. PCARR, 1977.

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