TY  - GEN
ED  - Bureau of Ceylon Standards,  Colombo LK
TI  - SLS : 515 : 1981 : Specification for masonary cement
PY  - 1981///
CY  - Colombo
PB  - BCS
KW  - a666.94:691.54:69.012
KW  - SRI LANKA-STANDARDS
KW  - STANDARDS-SRI LANKA
ER  -