000 00310nam a2200133Ia 4500
008 160316s1937 xxu||||| |||| 00| 0 eng d
020 _a
100 _aA.F. Gustafson
245 _aConservation Of The Soil
250 _a1st
260 _aNEW YORK
_bMCGRAW-HILL BOOK COM.
_c1937
300 _a312
700 _a
_a
999 _c38653
_d38653