00345nam a22001337a 4500003000400000005001700004008004100021020001500062040000700077082001700084245009200101260000900193300000900202OSt20210929135218.0210929b        |||||||| |||| 00| 0 eng d  a1853391018  cHU  a338.16091724  a     Joining farmer's experiments : experiences in participatory technology development  c1991  aX269