TY  - BOOK
AU  - Indian Standards Institution
TI  - Summaries of Indian Standards for Building Materials (SP : 21 (S & T) - 1983)
U1  - SP : 21 (S & T) - 1983 
PY  - 1985///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - SP : 21 (S & T) - 1983
ER  -