Scott Adams (2007). “Stick to Drawing Comics, Monkey Brain!: Cartoonist Explains Cloning, Blouse Monsters, Voting Machines, Romance, Monkey G ods, How to Avoid Being Mistaken for a Rodent, and More”, p.438, Penguin
Edward Hopper, Hayward Gallery, Whitney Museum of American Art (1981). “Edward Hopper, 1882-1967: Hayward Gallery, London, 11 February to 29 March 1981 : a selection from the exhibition Edward Hopper, the art and the artist held at the Whitney Museum of American Art in New York from 16 September 1980 to 25 January 1981”