00390nam a2200133Ia 450000500170000000800410001710000210005810000220007924500510010130000130015265000270016565100190019277300450021120250822170911.0250822s9999||||xx |||||||||||||| ||und||  aKohmans, Enrique  aVásquez, Darwin 0aLa agricultura ecológica en América Latina  ap. 36-38  aAGRICULTURA SOSTENIBLE  aAMERICA LATINA  aBoletín agroecológico  No. 63 (1999)