TY  - GEN
ED  - BUREAU OF CEYLON STANDARDS
TI  - SLS 269 : 1974 : Specification for synthetic plastic spectacle frames (metric units)
PY  - 1974///
CY  - Colombo
PB  - Bureau of Ceylon Standards
KW  - a681.432.3
KW  - SRI LANKA-STANDARDS
KW  - STANDARDS-SRI LANKA
N1  - STD2488
ER  -