000			00650nam a2200169Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a333.7316 _bMUS/S.1931-35
100			_aMusgrave , G.W.
245			_aSoil and water conservation investigations at the soil conservation experiment station Missouri Valley Loess Region Clarinda, Iowa : _bprogress report 1931-35 _cby G.W. Musgrave and R.A. Norton
260			_aWashington, D.C. : _bUnited States Department of Agriculture , _c1937
300			_a182p ; _c22.5cm
653			_aSoil conservation
653			_aWater conservation
700			_aNorton , R.A.
942			_cEN _2ddc
999			_c22037 _d22037