TY  - GEN
ED  - SRI LANKA STANDARDS INSTITUTION
TI  - SLS 855 : part 1 : 1989 : specification for cement blocks : part 1 - requirements
PY  - 1989///
CY  - Colombo
PB  - SRI LANKA STANDARDS INSTITUTION
KW  - a693.27:666.94
KW  - CEMENT-STANDARDS
KW  - SRI LANKA-STANDARDS
N1  - STD2990
ER  -