000 00345nam a2200145Ia 4500
008 170101s1988 xx 000 0 und d
082 _a630 S48P
100 _aSINGH, S.S
245 0 _aPrinciples and practices of agronomy
260 _bNew Delhi
_c1988
300 _a280p
650 _aAGRICULTURE
653 _aAGRICULTURE
942 _2ddc
_cB
999 _c99922
_d99922