TY  - BOOK
AU  - Bureau of Indian Standards
TI  - Portland Pozzolana Cement Specification: Part - 1 Fly Ash Based (IS : 1489 (Part 1) - 1991) 
U1  - IS : 1489 (Part 1) - 1991 
PY  - 1991///
CY  - New Delhi
PB  - Bureau of Indian Standards
KW  - Indian Standard - IT
N1  - IS : 1489 (Part 1) - 1991
ER  -