00454nam a22001577a 4500003000400000008004100004082001800045100001800063245005000081260004400131300001400175650003400189650004100223650001400264650001800278OSt230711b        |||||||| |||| 00| 0 eng d  a630.717bD11E  aDahama, O. P.  aExtension & Rural Welfare / cby O. P. Dahama  a.- Agra b: Ram Prasad and Sonsc, 1973  axii,716p.  aTechnology (Applied Sciences)  aAgriculture and Related Technologies  aExtension  aRural Welfare