IS: 1885 (Part III/Sec 5)-1966 :Electrotechnical Vocabulary Part 3 Acoustics Section 5 Speedh and Hearing
IS: 1885 (Part III/Sec 5)-1966 :Electrotechnical Vocabulary Part 3 Acoustics Section 5 Speedh and Hearing
- New Delhi BIS 1967
- 12p
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