000 00339nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aParry, S.W., Austin, M.M.
245 _aPotash shales of illinois
260 _aIllinois
_c1921
300 _a229-252 p.
440 _aIllinois Agricultral Experime
901 _a21266
942 _cB
_2udc
999 _c3249
_d3249