WOR (AM) (English Wikipedia)

"1922—Year Radio's Population Soared". Broadcasting. May 14, 1962. p. 118. Retrieved June 29, 2018.
Radio Service Bulletin. The Bureau. 1920. pp. 1–.
"Radio Conference Recommendations: New Wave Lengths", Radio Age, May 1923, page 11. Beginning with these assignments, radio stations ended the practice of broadcasting their market reports and weather forecasts on the separate 485-meter wavelength.
"Class B Calls and Waves", Radio Age, June 1923, page 12.

books.google.com

Dunning, John (1998). On the Air: The Encyclopedia of Old-Time Radio (Revised ed.). New York, NY: Oxford University Press. pp. 117–118. ISBN 978-0-19-507678-3. Retrieved October 1, 2019.

The WOR call sign had previously been assigned to the ship SS California of the Orient Lines. ("Ship stations", Radio Service Bulletin, February 1915, page 2.)
"Amendments to Regulations", Radio Service Bulletin, January 3, 1922, page 10.
"New Stations", Radio Service Bulletin, March 1, 1922, page 2. Limited Commercial license with the call sign WOR, serial No. 297, issued for a three-month period to L. Bamberger & Company in Newark, New Jersey.
I Looked and I Listened by Ben Gross, 1954, pages 54-56.
"Make First Co-operative Effort to Equalize Air Usage", The Radio Dealer, June 1922, page 12.
"Amendments to Regulations: Regulation 57", Radio Service Bulletin, September 1, 1922, pages 10-11.

Barmash, Jerry (October 6, 2011). "WOR Enhances Its Partnership With NBC News". Fishbowl NY. Archived from the original on October 27, 2011. Retrieved June 6, 2022.
Clear Channel to Purchase WOR Radio (press release). Mediabistro, August 13, 2012.

Hinkley, David (July 28, 2013). "Rush Limbaugh rushing out of Cumulus Media to WOR, with Sean Hannity in tow". Daily News. New York. Retrieved October 15, 2018.

"Henry Gladstone; Radio Newscaster, 83". The New York Times. January 27, 1995. p. 20. Retrieved August 12, 2020.

Venta, Lance (January 3, 2013). "Clear Channel Begins WOR Revamp". radioinsight.com. Retrieved August 12, 2020.

"WOR to Move Studios Downtown". radioworld.com. August 10, 2004. Archived from the original on August 27, 2004. Retrieved July 4, 2022.

"WOR to Move Studios Downtown". radioworld.com. August 10, 2004. Archived from the original on August 27, 2004. Retrieved July 4, 2022.
Barmash, Jerry (October 6, 2011). "WOR Enhances Its Partnership With NBC News". Fishbowl NY. Archived from the original on October 27, 2011. Retrieved June 6, 2022.

"Columbia System Ready To Go" (PDF). Radio Digest Illustrated. September 1927. p. 5. Retrieved June 7, 2022.