00919nam a2200301 a 4500 AR-ReUNN 20260702153122.0 260630s1997 uk |||||||||||||||||eng eng Veldhuizen, Laurens Van 130128 Waters Bayer, Ann 63933 Ramírez, Ricardo 77744 Johnson, Debra a. 130129 Thompson, John 130130 Farmers' research in practice : lessons from the field / Laurens van Veldhuizen ...[et al.] London Intermediate Technology Publications 1997 285 páginas Sudan 79669 Tanzania 4916 Tecnicas Agricolas 116389 Innovacion 7102 Investigadores Agricolas 115221 Agricultores 125173 Agricultura 5304 LIB (AGROP)68767 222056 0 0 0 1 AGROP AGROP GEN 2009-04-08 0 631.1 VEL ej.1 6.03-002091 LIB 222056 222056 AR-ReUNN spa AR-ReUNN aacr2 0 0 0 1 AGROP AGROP GEN 2009-04-08 0 631.1 VEL ej.1 6.03-002091 LIB