00346nam a2200133Ia 4500008004100000041000800041082001400049100003000063245003600093250000800129260004700137300000600184650002200190230711s9999||||xx |||||||||||||| ||und|| aENG a624bBU-I aBureau of Indian Standard 0aIS : 13735 1993 ISO : 8201:1987 a1st c1993aNew DelhibBureau of Indian Standard a5 aCivil Engineering