000 00314nam a2200109Ia 4500
001 MPKV108531
008 120911s9999 xx 000 0 und d
082 _a631.4
245 _aCrop and Soils Magazine Vol. 38-39 No.
_c;
246 _aCrop and Soils Magazine
260 _aWisconsin
_bAmerican Society of Agronomy
_c1988
999 _c71886
_d71886