SLS : 39 : 1978 : Common burnt clay building bricks (First revision)
- Colombo Bureau of Ceylon Standards 1978
- 10p.
STD2089
SLS 39 : 1978
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
69.001.3 / S7
STD2089
SLS 39 : 1978
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
69.001.3 / S7