000 nam a22 7a 4500
999 _c788
_d788
003 OSt
005 20180530191940.0
008 180530b xxu||||| |||| 00| 0 eng d
082 _a630.715
_bRAY
100 _aRay, G.L.
245 _aStudies in agricultural extension and management /
_cby G.L. Ray.
260 _aDelhi :
_bMittal Publications ;
_c1989.
300 _axi ; 163 p.,
_c21 cm.
942 _2ddc
_cBK