00485nam a2200169Ia 4500008004100000041000800041082001400049100003000063245001900093250000800112260004700120300000700167650002200174942000700196952009700203999001500300230711s9999||||xx |||||||||||||| ||und|| aENG a624bBU-I aBureau of Indian Standard 0aIS : 1786 1987 a1st c1987aNew DelhibBureau of Indian Standard a19 aCivil Engineering cBK 001040708RaMCLbMCLd0000-00-00l0o624 BU-Ip11534r2023-08-17 14:02:49w2023-08-17yBK c3156d3156