Hafstadter, A. (1964). Philosophies of art and beauty. Random House.
Lua i Stíl Chicago (17ú heag.)Hafstadter, Allbert. Philosophies of Art and Beauty. New York: Random House, 1964.
Lua MLA (9ú heag.)Hafstadter, Allbert. Philosophies of Art and Beauty. Random House, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.