00338nam a2200133Ia 4500008004100000041000800041082001400049100003000063245002700093250000800120260004700128300000700175650002200182230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aIS : Part I sec 3 1979  a1st  c1979aNew DelhibBureau of Indian Standard  a47  aCivil Engineering