IS:9913-1981. Indian standard code of practice for construction of cross drainage works.
Indian Standards Institution[ISI]
IS:9913-1981. Indian standard code of practice for construction of cross drainage works. - New Delhi Indian Standards Institution 1982 - 11p.
IS Code / I.S.I
IS:9913-1981. Indian standard code of practice for construction of cross drainage works. - New Delhi Indian Standards Institution 1982 - 11p.
IS Code / I.S.I