Douglas Hofstadter, Gödel, Escher, Bach.
Douglas R. Hofstadter, Gödel, Escher, Bach: An Eternal Golden Braid, 20th anniversary ed (New York: Basic Books, 1999).
Douglas R. Hofstadter, Gödel, Escher, Bach: An Eternal Golden Braid, 20th anniversary ed (New York: Basic Books, 1999).