000			00338nam a2200133Ia 4500
008			130225s9999 xx 000 0 und d
100			_aCarlson, F.A.
245			_aSome relations of organic matter in soils
260			_aIthaca _c1922
300			_a1-27 p.
440			_aCornell Agricultural Experime
901			_a19456
942			_cB _2udc
999			_c2880 _d2880