SLS 289 : 1974 : Code of practice for writing the time with reference to the 24-hour time keeping system
- Colombo Bureau of Ceylon Standards 1974
- 8p.
STD2503
SLS 289 : 1974
a529.7:389.2
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
529.7 : 389.2
STD2503
SLS 289 : 1974
a529.7:389.2
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
529.7 : 389.2