000			00450nam a2200157Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a631.45 _bFOS/A
100			_aFoster, Albert B.
245			_aApproved practices in soil conservation _cby Albert B. Foster
260			_aDanville : _bThe Interstate , _c1955
300			_a378p.: ill ; _c21.6cm
504			_aIndex: pp 379-80
653			_aSoil conservation
942			_cEN _2ddc
999			_c25090 _d25090