Broadcasting in the public interestNational Broadcasting Company · First published 1939 · Latest edition 2021Open the Tome
NBC Radio and television broadcast standardsNational Broadcasting Company · First published 1951Open the Tome
NBC radio and television broadcast standardsNational Broadcasting Company, inc. · First published 1951Open the Tome
![Cover of [N. B. C Trade Releases]. ; 1952](https://covers.openlibrary.org/b/isbn/9781014845146-M.jpg?default=false)
![Cover of [N. B. C Trade Releases]. ; 1956](https://covers.openlibrary.org/b/isbn/9781014094667-M.jpg?default=false)
![Cover of [N. B. C Trade Releases]. ; 1962](https://covers.openlibrary.org/b/isbn/1014046734-M.jpg?default=false)
![Cover of [N. B. C Trade Releases]. ; 1963](https://covers.openlibrary.org/b/isbn/1014840996-M.jpg?default=false)
![Cover of [N.B.C Trade Releases].; 1953](https://covers.openlibrary.org/b/id/12542062-M.jpg)
