Kate Guthrie: The Art of Appreciation – Music and Middlebrow Culture in Modern Britain, Oakland (CA): University of California Press 2021, S. 95/96. Hier abrufbar.
N. J. Crowson: Fleet Street, Press Barons and Politics: The Journals of Collin Brooks, 1932–1940, Cambridge (MA): Cambridge University Press 1998, S. 271Fn17. Hier abrufbar.
books.google.de
Asa Briggs: The History of Broadcasting in the United Kingdom: Volume II: The Golden Age of Wireless, Oxford: Oxford University Press 1995, S. 138. Hier abrufbar.
