000 00483nam a2200145 a 4500
005 20220228110529.0
035 _aF8901000703766
084 _aHRB REC 262 1969
245 _aPipes and culverts, 5 reports / Highway Research Board.
260 _aWashington, D.C. : HRB
300 _a68 p.
440 _aRecord ; 262 / Highway Research Board
690 _aCarreteras - Drenaje.Alcantarillas - Diseño hidraúlico.
710 _aE.U.A. National Research Council. Highway Research Board.
999 _c55302
_d55302