Standards of good engineering practice concerning standard broadcast stations (550-1600 kc.) effective August 1, 1939 (revised to June 1, 1944)

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110 1 ‡aUnited States. ‡bFederal Communications Commission.
245 1 0 ‡aStandards of good engineering practice concerning standard broadcast stations (550-1600 kc.) effective August 1, 1939 (revised to June 1, 1944)
260 ‡aWashington, ‡bU.S. Govt. print. off., ‡c1944.
300 ‡a1 v. ‡bfold. map, tables, fold. diagrs. ‡c23 cm.
500 ‡aLoose leaf.
538 ‡aMode of access: Internet.
CID ‡a101794871
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DAT 1 ‡a20180312231939.0 ‡b2023-10-26T17:56:57Z
DAT 2 ‡a2023-10-26T17:30:02Z
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