APA
Indian standards institution, . (1987). Specification for hot rolled steel section for doors ,windows and ventilators,IS:7452-1982. New Delhi: Indian Standards Institution.
Chicago
Indian standards institution, . 1987. Specification for hot rolled steel section for doors ,windows and ventilators,IS:7452-1982. New Delhi: Indian Standards Institution.
Harvard
Indian standards institution, . (1987). Specification for hot rolled steel section for doors ,windows and ventilators,IS:7452-1982. New Delhi: Indian Standards Institution.
MLA
Indian standards institution, . Specification for hot rolled steel section for doors ,windows and ventilators,IS:7452-1982. New Delhi: Indian Standards Institution. 1987.
