Farmers' research in practice : lessons from the field / Laurens van Veldhuizen ...[et al.]

Farmers' research in practice : lessons from the field / Laurens van Veldhuizen ...[et al.] Veldhuizen, Laurens Van creator Waters Bayer, Ann Ramírez, Ricardo Johnson, Debra a. Thompson, John text uk 1997 monographic eng 285 páginas Sudan Tanzania Tecnicas Agricolas Innovacion Investigadores Agricolas Agricultores Agricultura AR-ReUNN 260630 20260702153122.0 222056 spa