000			004110000a22001570004500
245			_aSmall concrete dams
110			_aPortland Cement Association
260			_aIllinois _bPortland Cement Association _c1971
300			_a66p. : ill.
440			_aHydraulic structures reference series
500			_aprepared by Hallmark, D.E.
080			_a627.8 _bP6
650			_aDAMS
041			_aEN
942			_cBK
999			_c95235 _d95235