00337nam a2200133Ia 4500008004100000041000800041082001400049100003000063245002600093250000800119260004700127300000700174650002200181230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aIS : 2911 Pt III 1981  a1st  c1981aNew DelhibBureau of Indian Standard  a33  aCivil Engineering