00365nam a2200157Ia 4500008004100000041001200041082000800053082001100061100001600072100001100088245004300099260001000142260002400152260000900176650002200185150901s9999    xx            000 0 und d  aEnglish  a624  bAHU/RO  aAhuga T D    eAuthor  aRoads, railways , bridges and  tannels  aDelhi  bStandard Book house  c1975  aCivil engineering