000 00375nam a2200121Ia 4500
001 MPKV058006
008 120911s9999 xx 000 0 und d
082 _a631.4
245 _aSoil Science Society of America Proceedings Vol.32 No.1-6
_c;
246 _aSoil Science Society of America Proceedings Vol.32 No.1-6
260 _aWisconsin
_bMadison
_c1968
650 _aSoil science
999 _c55996
_d55996