NBC (Serbian Wikipedia)

RCA Lead Tenant of Rockefeller Center, see: John Esnor Harr; Peter J. Johnson (1988). The Rockefeller Century. New York City: Scribner's. стр. 326. ISBN 0-684-18936-4.

books.google.com (Global: 3^rd place; Serbian: 10^th place)

Cox, Jim (2009). American Radio Networks: A History. стр. 14—98. ISBN 978-0-7864-4192-1.
William A. Richter. „Radio: A Complete Guide to the Industry”. German National Library: 27. ISBN 0-8204-8834-8. ISSN 1550-1043.
Rayno, Don (2013). Paul Whiteman: Pioneer in American Music, 1930-1967. Scarecrow Press. стр. 258. ISBN 978-0-8108-8204-1.

broadcastpioneers.com (Global: low place; Serbian: low place)

„W3XE Broadcasting the 1940 GOP Convention (KYW-TV)”. Broadcast Pioneers of Philadelphia. Приступљено 2020-01-22.

deadline.com (Global: 19^th place; Serbian: 59^th place)

Lieberman, David (2013-03-19). „Comcast Completes Acquisition Of GE's 49% Stake In NBCUniversal”. Deadline.com.

earlyradiohistory.us (Global: low place; Serbian: low place)

„Announcing the National Broadcasting Company, Inc.”. United States Early Radio History. Приступљено 2020-01-22.

mediahistoryproject.org (Global: low place; Serbian: low place)

Pierce, David (2011-03-17). „The End of NBC Red and Blue”. Архивирано из оригинала 01. 02. 2014. г. Приступљено 2020-01-22.

musicradio77.com (Global: low place; Serbian: low place)

Sniffen, Allan. „Why Did WABC Have Such a Great Signal?”. Приступљено 2020-01-22.

myinfo24.com (Global: low place; Serbian: low place)

„List of United States over-the-air television networks”. Entomology. Архивирано из оригинала 31. 01. 2016. г. Приступљено 2020-01-22.

nbcuni.com (Global: low place; Serbian: low place)

„Company Overview”. NBC Universal. Архивирано из оригинала 06. 05. 2006. г. Приступљено 2020-01-22.

nytimes.com (Global: 7^th place; Serbian: 29^th place)

Gray, Christopher (2010-02-17). „Streetscapes: Where the Peacock Nested and the Mice Presided”. The New York Times. The New York Times Company. Приступљено 2020-01-22.

tvhistory.tv (Global: low place; Serbian: low place)

„1939 RCA TV sets”. TVHistory.tv. Архивирано из оригинала 11. 03. 2022. г. Приступљено 07. 01. 2021.
„June 30 WNBT program schedule”. TVHistory.tv. Архивирано из оригинала 18. 01. 2011. г. Приступљено 07. 01. 2021.

twitter.com (Global: 43^rd place; Serbian: 174^th place)

„NBC Entertainment on Twitter”. Twitter. 2020-01-22. Приступљено 2020-01-22. „Powerful stories, unforgettable characters. Big TV Starts Here on NBC.”

web.archive.org (Global: 1^st place; Serbian: 2^nd place)

„Company Overview”. NBC Universal. Архивирано из оригинала 06. 05. 2006. г. Приступљено 2020-01-22.
„List of United States over-the-air television networks”. Entomology. Архивирано из оригинала 31. 01. 2016. г. Приступљено 2020-01-22.
Pierce, David (2011-03-17). „The End of NBC Red and Blue”. Архивирано из оригинала 01. 02. 2014. г. Приступљено 2020-01-22.
„1939 RCA TV sets”. TVHistory.tv. Архивирано из оригинала 11. 03. 2022. г. Приступљено 07. 01. 2021.
„June 30 WNBT program schedule”. TVHistory.tv. Архивирано из оригинала 18. 01. 2011. г. Приступљено 07. 01. 2021.

worldcat.org (Global: 4^th place; Serbian: 11^th place)

William A. Richter. „Radio: A Complete Guide to the Industry”. German National Library: 27. ISBN 0-8204-8834-8. ISSN 1550-1043.

NBC (Serbian Wikipedia)

archive.org (Global: 6th place; Serbian: 8th place)

books.google.com (Global: 3rd place; Serbian: 10th place)

broadcastpioneers.com (Global: low place; Serbian: low place)

deadline.com (Global: 19th place; Serbian: 59th place)

earlyradiohistory.us (Global: low place; Serbian: low place)

mediahistoryproject.org (Global: low place; Serbian: low place)

musicradio77.com (Global: low place; Serbian: low place)

myinfo24.com (Global: low place; Serbian: low place)

nbcuni.com (Global: low place; Serbian: low place)

nytimes.com (Global: 7th place; Serbian: 29th place)

tvhistory.tv (Global: low place; Serbian: low place)

twitter.com (Global: 43rd place; Serbian: 174th place)

web.archive.org (Global: 1st place; Serbian: 2nd place)

worldcat.org (Global: 4th place; Serbian: 11th place)

archive.org (Global: 6^th place; Serbian: 8^th place)

books.google.com (Global: 3^rd place; Serbian: 10^th place)

deadline.com (Global: 19^th place; Serbian: 59^th place)

nytimes.com (Global: 7^th place; Serbian: 29^th place)

twitter.com (Global: 43^rd place; Serbian: 174^th place)

web.archive.org (Global: 1^st place; Serbian: 2^nd place)

worldcat.org (Global: 4^th place; Serbian: 11^th place)