000 00312nam a2200121Ia 4500
008 170101s1985 xx 000 0 und d
082 _a631 SIN
100 _aSingh S. S.
245 0 _aPrinciples and Practice of Agronomy
260 _aNew Delhi
_bKalyani Publishers
_c1985
300 _a200 p.
942 _2ddc
_cB
999 _c913816
_d913816