IS:4091-1979. Indian Standard code of practice for design and construction of foundation for transmission line towers and poles.
Bureau of Indian Standards[BIS]
IS:4091-1979. Indian Standard code of practice for design and construction of foundation for transmission line towers and poles. - New Delhi Bureau of Indian Standards 1980 - 17p.
IS Code / B.I.S
IS:4091-1979. Indian Standard code of practice for design and construction of foundation for transmission line towers and poles. - New Delhi Bureau of Indian Standards 1980 - 17p.
IS Code / B.I.S