Labios, R. V. (1998). Corn production and management in paddy fields: Cases in Camiling, Tarlac and Malasiqui, Pangasinan. Farming Systems and Soil Resources Institute, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)Labios, Romeo V. Corn Production and Management in Paddy Fields: Cases in Camiling, Tarlac and Malasiqui, Pangasinan. Los Banos: Farming Systems and Soil Resources Institute, University of the Philippines, 1998.
Lua MLA (9ú heag.)Labios, Romeo V. Corn Production and Management in Paddy Fields: Cases in Camiling, Tarlac and Malasiqui, Pangasinan. Farming Systems and Soil Resources Institute, University of the Philippines, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.