000 00333nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aHopkins, C.G., Aumer, J.P.
245 _aPotassium from the soil
260 _aUrbana
_c1915
300 _a1-10 p.
440 _aIllinois Agricultural Experim
901 _a21230
942 _cB
_2udc
999 _c3213
_d3213