00312nam a2200109Ia 4500008004100000082001400041100003000055245004100085250001200126260004700138650001700185230106s9999    xx            000 0 und d  a720bBU-N  aBureau of Indian Standard 0aNational building code of India 1983  a1st Ed.  aNew DelhibBureau of Indian Standardc2001  aArchitecture