000 00295nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a631.466 L4
100 _a"Richards, B.N."
245 _aIntroduction to soil ecosystems
260 _a1974
_bLongman
_cLondon
300 _a266
942 _cBK
999 _c59947
_d59947