000 00340nam a2200121Ia 4500
001 MPKV109239
008 120911s9999 xx 000 0 und d
082 _a631.4
245 _aSoil Science Vol 144, No. 1-6
_c;
246 _aSoil Science Vol 113,114
260 _aMaryland
_bWilliams and Wilkins Co. Baltimore
_c1987
650 _aSoil Science
999 _c72583
_d72583