00504nam a2200169Ia 4500003000400000008004100004082001800045100001800063245005300081260004300134300001400177650003400191650004100225650003200266650002200298650001400320OSt170901s1979    xx            000 0 und d  a630.717bD11E  aDahama, O. P. 0aExtension and Rural Welfare / bby  O. P. Dahama  a.- Agrab: Ram Prasad and Sonsc, 1979  axii,716p.  aTechnology (Applied Sciences)  aAgriculture and Related Technologies  aAgricultural Extension Work  aRural Development  aBook Bank