The principles of sound signalling,

में बचाया:
ग्रंथसूची विवरण
OCLC:7779775
मुख्य लेखक: Hart, Morris Daniel
अन्य लेखक: Smith, W. Whately (Walter Whately), 1892-1947 (joint author.)
भाषा:English
प्रकाशित: New York, D. Van Nostrand, 1925.
विषय:
Sound.
Sound > Equipment and supplies.
Signals and signaling.
स्वरूप:

Monograph

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विवरण
भौतिक वर्णन:4 p. ̋., 139, [1] p. diagrs. 23 cm.

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