00558nam a2200157Ia 4500003000900000008004100009040001600050080002200066110003100088245016400119260004800283300000800331650002700339650002000366650001400386IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a69.01:624bIND-25  aBureau of Indian Standards 0aIndian standard: method of measurement of building and civil engineering worksbpt. 25, tunnelingcBureau of Indian Standards                                    aNew DelhibBureau of Indian Standardsc2003  a7p.  acivil engineering work  aIndian standard  aTunneling