000 00259nam a2200085Ia 4500
001 MPKV108469
008 120911s9999 xx 000 0 und d
245 _aCandian Journal of Soil Science Vol. 67 No. 1-4
_c;
260 _aOttawa
_b Agril. Institute of Canada
_c1987
999 _c71825
_d71825