000 00316nam a2200109Ia 4500
008 151021s9999 xx 000 0 und d
100 _aKanwar, J. S.
245 _aSoil fertility : theory and practice
260 _c1976
_aNew Delhi
_bIndian Council of Agricultural Research
300 _axi, 533p.
942 _2udc
_aICAR
999 _c26807
_d26807