000 00269nam a2200097Ia 4500
008 180426s2012 xx 000 0 und d
082 _a631.416 S6
245 0 _aSoil Potassium and Magnetism
260 _bSoil Chemists of the Nat. Agril.Advisory
_c1967
942 _2ddc
_cAG
999 _c129892
_d129892