On-site costs and benefits of soil conservation among hillside farmers in El Salvador - Cocchi, Horacio; Bravo Ureta, Boris (Washington, D.C. : Inter-American Development Bank, Office of Evaluation and Oversight, 2007)
"Working Paper: OVE/WP-04/07"
Keywords: CONSERVACION DE SUELOS; CONSERVACION DE SUELOS -- EL SALVADOR; TALUDES (GEOGRAFIA FISICA)