TY  - GEN
AU  - Sri Lanka Standards Institution
TI  - Engineering drawing practice part 1: recommendations for general principles (first revision) SLS 409: Part 1 : 2004
U1  - 741.02:006 
PY  - 2004///
CY  - Colombo
PB  - Sri Lanka Standards Institution
KW  - SLS 409: PART 1: 2004
KW  - SRI LANKA STANDARDS MECHANICAL ENGINEERING ENGINEERING DRAWING
KW  - STANDARDS
ER  -