TY  - BOOK
AU  - Bureau of Indian Standards[BIS]
TI  - IS:12093-1987. Indian standard code of practice for laying and fixing of sloped roof covering using plain and corrugated galvanized steel sheets
U1  - IS CODE 
PY  - 1988///
CY  - New Delhi
PB  - Bureau of Indian Standards
N1  - ENG
ER  -