000			00293nam a22001337a 4500
003			OSt
008			240110b |||||||| |||| 00| 0 eng d
082			_aR631.62 _bF60D
100			_aF.A.O
245			_aDrainage design factors
260			_aRome _bF.A.O _c1980
300			_a52
942			_2ddc _cBK
999			_c35927 _d35927