000			00357nam a2200133Ia 4500
008			130225s9999 xx 000 0 und d
100			_aCates, J.S.
245			_aMangum terrace in its relation to efficient farm management
260			_awashington _c1912
300			_a1-11 p.
440			_aUnited States Department of A
901			_a5777
942			_cB _2udc
999			_c1162 _d1162