Bureau of Indian Standards, BIS
IS 1343:1980 Code of Practice for Prestressed Concrete (First Revision) Bureau of Indian Standards - New Delhi Bureau of Indian Standards 1980
IS 1343:1980 BUR
IS 1343:1980 Code of Practice for Prestressed Concrete (First Revision) Bureau of Indian Standards - New Delhi Bureau of Indian Standards 1980
IS 1343:1980 BUR