Evan Esar (1978). “The Comic Encyclopedia: A Library of the Literature and History of Humor Containing Thousands of Gags, Sayings, and Stories”, Doubleday Books
"Lady Chatterly's Trial (The Old Bailey, 20 October - 2 November 1960)". "Tynan Right and Left: Plays, Films, People, Places and Events". Book by Kenneth Tynan, p. 409, 1967.
Jane Roberts (2011). “The Nature of Personal Reality (A Seth Book): Specific, Practical Techniques for Solving Everyday Problems and Enriching the Life You Know”, p.276, Amber-Allen Publishing