Indian Standard Institution, .
Code of practice for construction of hollow concrete black masonary,IS:2572-1963 - New Delhi : Indian Standards Institution , 1981. - 20 ; .
691.327 / IND/CO
Code of practice for construction of hollow concrete black masonary,IS:2572-1963 - New Delhi : Indian Standards Institution , 1981. - 20 ; .
691.327 / IND/CO