000 00231nam a2200085Ia 4500
001 MPKV111200
008 120911s9999 xx 000 0 und d
245 _aSoil Science Vol 146 No 1-6
_c;
260 _aUSA
_bWilliams and Wilkins Co.
_c1988
999 _c74503
_d74503