000 00271nam a22001217a 4500
003 OSt
100 _aJ.S.Kanwar
245 _aFarming systems research in India;A historical perspective
700 _aVirmani.S.M
700 _aDar.S.K
901 _aRP1849
942 _2ddc
_cRP
999 _c8653
_d8653