00461nam a2200145Ia 4500008004100000082001600041100002200057245005100079260005400130300000800184650004100192650003400233653002900267653001900296170901s1959    xx            000 0 und d  a631.3bK55A  aKhaerdekar, D. N. 0aAgricultural Engineering For Extension Workers  aNew DelhibMinistry of Food And Agriculturec1959  a110  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural engineering  aExtension work