000 00317nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aMorris R.A.
245 0 _aManaging Soil Fertility
260 _bFood and Fertilizer Tech. Centre
260 _c1997
365 _b0.00
650 _aSoil science
942 _cBK
999 _c249502
_d249502