IS:4880-[Pt.1]-1987. Indian standard code of practice for design of tunnels conveying water. Pt.1 : general design.
Bureau of Indian Standards[BIS]
IS:4880-[Pt.1]-1987. Indian standard code of practice for design of tunnels conveying water. Pt.1 : general design. - New Delhi Bureau of Indian Standards 1988 - 4p.
IS CODE / B.I.S
IS:4880-[Pt.1]-1987. Indian standard code of practice for design of tunnels conveying water. Pt.1 : general design. - New Delhi Bureau of Indian Standards 1988 - 4p.
IS CODE / B.I.S