000 003560000a22001570004500
060 _a100
082 _a631.4 BEN
100 _aBenne H, Hugh Hammond
245 _aElements of soil conservation
250 _a2
260 _aNew York, Mc Graw- Hill Book Company Inc
260 _c1955
300 _a358
650 _aSoil conservation
942 _cBK
999 _c358563
_d358563