Catalogue of conservation practices for agriculture on sloping land /
- College, Laguna, Philippines ; SEARCA, 1998.
- x, 158 p. : ill. (some col.) ; 30 cm.
971560014X
Hill farming
Agricultural conservation
631 SEA 1998 A036 Or.
971560014X
Hill farming
Agricultural conservation
631 SEA 1998 A036 Or.