00335nam a2200133Ia 4500008004100000041000800041082001400049100003000063245002400093250000800117260004700125300000700172650002200179230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aIS : 2720 Pt I 1983  a2nd  c1984aNew DelhibBureau of Indian Standard  a10  aCivil Engineering