"CDs and audio"Archived 20 October 2014 at the Wayback Machine, Glyndebourne. Retrieved 8 September 2014 (Theodora, Carmen (2002), Die Meistersinger and Love and Other Demons); Stuart, Philip. Decca Classical, 1929–2009, AHRC Research Centre for the History and Analysis of Recorded Music. Retrieved 5 September 2014 (L'Ormindo, Così fan tutte and Carmen (1975)); "The Pilgrim's Progress", WorldCat. Retrieved 8 September 2014; and "Lady Macbeth of Mtsensk", WorldCat. Retrieved 8 September 2014.
"Music", The Times, 23 October 1930, p. 12; "London Concerts", The Musical Times, December 1930, pp. 1124–1127. (subscription required); and "Music", The Observer, 26 October 1930, p. 14.
Mitchell, Donald. "Promenade Concerts", The Musical Times, October 1953, p. 472. (subscription required)
Stuart, Philip. Decca Classical, 1929–2009, AHRC Research Centre for the History and Analysis of Recorded Music. Retrieved 5 September 2014.
"CDs and audio"Archived 20 October 2014 at the Wayback Machine, Glyndebourne. Retrieved 8 September 2014 (Theodora, Carmen (2002), Die Meistersinger and Love and Other Demons); Stuart, Philip. Decca Classical, 1929–2009, AHRC Research Centre for the History and Analysis of Recorded Music. Retrieved 5 September 2014 (L'Ormindo, Così fan tutte and Carmen (1975)); "The Pilgrim's Progress", WorldCat. Retrieved 8 September 2014; and "Lady Macbeth of Mtsensk", WorldCat. Retrieved 8 September 2014.
"CDs and audio"Archived 20 October 2014 at the Wayback Machine, Glyndebourne. Retrieved 8 September 2014 (Theodora, Carmen (2002), Die Meistersinger and Love and Other Demons); Stuart, Philip. Decca Classical, 1929–2009, AHRC Research Centre for the History and Analysis of Recorded Music. Retrieved 5 September 2014 (L'Ormindo, Così fan tutte and Carmen (1975)); "The Pilgrim's Progress", WorldCat. Retrieved 8 September 2014; and "Lady Macbeth of Mtsensk", WorldCat. Retrieved 8 September 2014.
"CDs and audio"Archived 20 October 2014 at the Wayback Machine, Glyndebourne. Retrieved 8 September 2014 (Theodora, Carmen (2002), Die Meistersinger and Love and Other Demons); Stuart, Philip. Decca Classical, 1929–2009, AHRC Research Centre for the History and Analysis of Recorded Music. Retrieved 5 September 2014 (L'Ormindo, Così fan tutte and Carmen (1975)); "The Pilgrim's Progress", WorldCat. Retrieved 8 September 2014; and "Lady Macbeth of Mtsensk", WorldCat. Retrieved 8 September 2014.