000 00314nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aVaughan (D) and Malcotton (RE) ed
245 0 _aSoil organic matter and biological activity
260 _bMartinus Nijhoty
260 _c1985
365 _b1254
942 _cBK
999 _c215295
_d215295