IS:12440-1988. Indian standard specification for precast concrete stone masonry blocks.
Bureau of Indian Standards[BIS]
IS:12440-1988. Indian standard specification for precast concrete stone masonry blocks. - New Delhi Bureau of Indian Standards 1989 - 7p.
ENG
IS CODE / B.I.S
IS:12440-1988. Indian standard specification for precast concrete stone masonry blocks. - New Delhi Bureau of Indian Standards 1989 - 7p.
ENG
IS CODE / B.I.S