TY  - GEN
ED  - Bureau of Ceylon Standards,  Colombo LK
TI  - SLS : 225 : 1973 : Sizes and substances for folders and files (Metric units)
PY  - 1973///
CY  - Colombo
PB  - Bureau of Ceylon Standards
KW  - a651.5:686.83
KW  - SRI LANKA-STANDARDS
KW  - STANDARDS-SRI LANKA
N1  - STD2446
ER  -