000 00258nam a2200109Ia 4500
008 221219s9999 xx 000 0 und d
100 _aW.L. Gusau
245 0 _aAgricultural Chemistry
260 _bAgri.Horti.Press
650 _aSoil science
942 _cBK
_01
999 _c3572
_d3572