000 00324 a2200133 4500
080 _a63(071.7)(54.51)
_bI 39 B
245 1 _aBench mark survey
_bReport, Batala
260 _aNew Delhi
_c1956
650 _aAgricultural Extension
700 _aIndia, Planning Commission
100 _a
_d
300 _a160 p.
901 _a53505
999 _c41246
_d41246