000 00290nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aIPI
245 4 _aThe Measurement of Soil Potassium
260 _bIPI
260 _c1979
365 _b0.00
650 _aSoil science
942 _cBK
999 _c239135
_d239135