00445cam a2200157 a 4500020001500000040000800015082002600023100001800049245005500067260005400122300003300176650001600209650001700225650003200242700001300274  a1555876749  cDLC  a338 LYN 1997 C165 CO.1 aSumberg, J. E10aFarmers' experiments :bcreating local knowledge /  aBoulder, Colo. :bLynne Rienner Publishers,c1997  axii, 186 p. :bill. ;c24 cm 0aAgriculture 0aFarms, Small 0aAgricultural extension work1 aOkali, C