000 00287nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aMortvedt (J.J)
245 0 _aMicronutrients in aga
260 _bSoil Science Sec. of America
260 _c1972
365 _b147.90
942 _cBK
999 _c202654
_d202654