Indian Standard : quantities and units - part 13 light and related electromagnetic radiations
Indian Standard : quantities and units - part 13 light and related electromagnetic radiations
- New Delhi Bureau of Indian Standards 1997
- 18p.
IS 1890 (part 13) : 1997, ISO 31-13 : 1992
Indian Standards
IS 1890 (part 13) : 1997, ISO 31-13 : 1992
Indian Standards