Amplitude and phase curves for ground-wave propagation in the band 200 cycles per second to 500 kilocycles

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050 0 4 ‡aQC100 ‡b.U555 no.574
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086 0 ‡aC 13.4:574
100 1 ‡aWait, James R.
245 1 0 ‡aAmplitude and phase curves for ground-wave propagation in the band 200 cycles per second to 500 kilocycles ‡c[by] James R. Wait and H. Herbert Howe.
260 ‡aWashington, ‡c1956.
300 ‡aii, 17 p. ‡bdiagrs. ‡c25 cm.
490 0 ‡aUnited States. National Bureau of Standards. Circular, ‡v574
504 ‡aBibliography: p. 4.
538 ‡aMode of access: Internet.
650 7 ‡aOndes radioélectriques. ‡2ram
650 0 ‡aRadio waves.
700 1 ‡aHowe, Henry Herbert, ‡d1905-
CID ‡a007291093
DAT 0 ‡a20101116143138.0 ‡b20141009010000.0
DAT 1 ‡a20141112165512.0 ‡b2023-03-14T18:38:02Z
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