000			00355nam a2200145Ia 4500
008			170101s1936 xx 000 0 und d
082			_a631.455 A98S
100			_aAyres, Q.C.
245		0	_aSoil erosion and its control
260			_aN.Y. _bMcGraw-Hill _c1936
300			_a365; xii
650			_aSOIL EROSION
653			_aSOIL EROSION
942			_2ddc _cB _02
999			_c415 _d415