Johnston, John (1990). The Lord Chamberlain's blue pencil. London: Hodder & Stoughton. pp. 46–57, 119–125, 265–266. ISBN978-0340525296. OCLC59148445.
Dominic, Shellard; Nicholson, Steve; Handley, Miriam (2004). The Lord Chamberlain regrets-- : a history of British theatre censorship. London: British Library. p. 25. ISBN978-0712348652. OCLC57430574.