000 00293 a2200121 4500
080 _a631.459
_bB 471 E
245 1 _aElements of soil conservation
_cby H.H. Bennett
260 _aNew York
_c1947
650 _aSoil Conservation
100 1 _aBennett, H.H.
_d
300 _a406 p.
901 _a31292
999 _c44279
_d44279