Philippine Council for Agriculture and Resources Research and Development. (2001). The Philippines recommends for conservation farming in the sloping lands. PCARRD-DOST.
Chicago-viite (17. p.)Philippine Council for Agriculture and Resources Research and Development. The Philippines Recommends for Conservation Farming in the Sloping Lands. Los Banos, Laguna: PCARRD-DOST, 2001.
MLA-viite (9. p.)Philippine Council for Agriculture and Resources Research and Development. The Philippines Recommends for Conservation Farming in the Sloping Lands. PCARRD-DOST, 2001.
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