00333nam a2200121Ia 4500008004100000041000800041082001400049100001400063245005000077250000800127260005400135650002200189230711s9999||||xx |||||||||||||| ||und||  aENG  a624bGU-R  aGupta,B.L 0aRoads,railways,bridges and tunnel engineering  a1st  c1991aNew DelhibStandard Publishing Distributors  aCivil Engineering