TY  - GEN
ED  - BUREAU OF CEYLON STANDARDS
TI  - SLS 433 :1978 : Sizes of drawing sheets
PY  - 1978///
CY  - Colombo
PB  - BUREAU OF CEYLON STANDARDS
KW  - a744.36.676.35
KW  - SRI LANKA-STANDARDS
N1  - STD2621
ER  -