000 00308nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.44
_bBUO
100 _aBUOL, S W
245 0 _aSoil genesis and classification
260 _aIowa
_bIowa State university
_c1973
650 _aSoil science
942 _cBK
999 _c23239
_d23239