TY  - BOOK
AU  - Indian Standards Institution
TI  - Quantities, Units and Symbols: Part 6 Light and Related Electromagnetic Radiations (IS : 1890 (Part 6) - 1983) ISO 31/6 - 1980
U1  - IS : 1890 (Part 6) - 1983 
PY  - 1983///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - IS : 1890 (Part 6) - 1983
ER  -