000			00352nam a2200133Ia 4500
008			140113s9999 xx 000 0 und d
082			_a631.459:631.61 G9
100			_a" Bennett, Hugh Hammond"
245			_aSoil conservation
260			_b"New York : McGraw-hill book company, 1939"
300			_a993p.
650			_aSoil conservation
942			_cBK
999			_c64118 _d64118