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Royal Opera House 1950a. "Don Quixote". Royal Opera House Collections. London, England: Royal Opera House. 20 February 1950a. Archived from the original on 24 July 2018. Retrieved 24 July 2018.
Royal Opera House 1951b. "Tiresias". Royal Opera House Collections. London, England: Royal Opera House. 9 July 1951b. Archived from the original on 24 July 2018. Retrieved 24 July 2018.
Royal Opera House 1952. "Sylvia". Royal Opera House Collections. London, England: Royal Opera House. 3 September 1952. Archived from the original on 4 March 2016. Retrieved 24 July 2018.
Royal Opera House 1958. "Ondine". Royal Opera House Collections. London, England: Royal Opera House. 27 October 1958. Archived from the original on 3 March 2016. Retrieved 25 July 2018.
Royal Opera House 1962. "Le Corsaire". Royal Opera House Collections. London, England: Royal Opera House. 3 November 1962. Archived from the original on 26 July 2018. Retrieved 26 July 2018.
Royal Opera House 1963b. "La Bayadère". Royal Opera House Collections. London, England: Royal Opera House. 27 November 1963b. Archived from the original on 26 July 2018. Retrieved 26 July 2018.
Ondaatje 2010. Ondaatje, Christopher (31 January 2010). "Superman". The Nation. Sri Lanka. Archived from the original on 17 November 2016. Retrieved 24 June 2018.
Royal Opera House 1942. "Hamlet". Royal Opera House Collections. London, England: Royal Opera House. 19 May 1942. Archived from the original on 25 June 2016. Retrieved 23 July 2018.
Royal Opera House 1946. "Les Sirènes". Royal Opera House Collections. London, England: Royal Opera House. 12 November 1946. Archived from the original on 24 July 2018. Retrieved 24 July 2018.
Royal Opera House 1950a. "Don Quixote". Royal Opera House Collections. London, England: Royal Opera House. 20 February 1950a. Archived from the original on 24 July 2018. Retrieved 24 July 2018.
Royal Opera House 1951b. "Tiresias". Royal Opera House Collections. London, England: Royal Opera House. 9 July 1951b. Archived from the original on 24 July 2018. Retrieved 24 July 2018.
Royal Opera House 1952. "Sylvia". Royal Opera House Collections. London, England: Royal Opera House. 3 September 1952. Archived from the original on 4 March 2016. Retrieved 24 July 2018.
Royal Opera House 1958. "Ondine". Royal Opera House Collections. London, England: Royal Opera House. 27 October 1958. Archived from the original on 3 March 2016. Retrieved 25 July 2018.
Royal Opera House 1962. "Le Corsaire". Royal Opera House Collections. London, England: Royal Opera House. 3 November 1962. Archived from the original on 26 July 2018. Retrieved 26 July 2018.
Royal Opera House 1963b. "La Bayadère". Royal Opera House Collections. London, England: Royal Opera House. 27 November 1963b. Archived from the original on 26 July 2018. Retrieved 26 July 2018.