00471    a2200121   4500020001500000082001500015245009900030260007800129300001900207440004200226650004000268650004100308  a9251018812  a630.7bGUI  aA guide for instructors in organizing and conducting agricultural engineering training courses  aRomebFood and Agriculture Organization of the United Nationsc1985g1985  avi,100p.c30cm  aFAO Agricultural services bulletin 12  aEducation, research, related topics  aAgriculture and related technologies