000 00274nam a2200109Ia 4500
008 170101s1990 xx 000 0 und d
082 _a338.1 BHA
100 _aSingh, D
245 0 _aAgriculture productivity in India
260 _aNew Delhi
_bAnmol
_c1990
942 _2ddc
_cRS
999 _c393281
_d393281