00365nam a2200133Ia 4500008004100000041000800041082001400049100003000063245005500093250000800148260004700156300000600203650002200209230711s9999||||xx |||||||||||||| ||und||  aENG  a624bBU-I  aBureau of Indian Standard 0aSI : 2720 Pt XXIbMethods of test for soils Pt XXI  a1st  c1977aNew DelhibBureau of Indian Standard  a7  aCivil Engineering