Philippine Council for Agriculture and Resources Research and Development. (2001). The Philippines recommends for conservation farming in the sloping lands. PCARRD-DOST.
Citace podle Chicago (17th ed.)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.
Citace podle MLA (9th ed.)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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