Walls, H.
(1923),
Letter Circular 92::radio signals of standard frequency and their utilization, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.LCIRC.92
(Accessed October 11, 2024)
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Letter Circular 92::radio signals of standard frequency and their utilization
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- LCIRC 92
Report Number
LCIRC 92
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NIST Pubs
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Created January 1, 1923, Updated May 19, 2023