000 00296nam a2200133Ia 4500
008 130223s9999 xx 000 0 und d
245 _aSoil crusts
260 _aTucson
260 _c1974
300 _a58 p.
440 _aNo. 214; Arizona Agricultural
901 _pS23399
942 _cB
_2udc
999 _c133615
_d133615