00290nam a2200097Ia 4500008004100000020001500041082001700056100002100073245005900094260003900153220204s9999    xx            000 0 und d  a8170350697  a631.171bBHA  aBhatia, Bhim Sen 0aAdoption of farm mechanization in a developing economy  aDelhibDaya Publishing Housec1990