000 00318 a2200133 4500
082 _a631.4
_bBEN
090 _c25223
_d42333
100 _aBennett, Hugh Hammond
245 _aSoil conservation
260 _aNew York
_bMcGraw Hill
_c1939
_g1939
300 _axvii,993p.
_c23cm
650 _aSoil Conservation
942 _cL
999 _c52206
_d52206