The Magazine of Fantasy and Science Fiction, January 1965. p.66-71.
Prime Number, July 1970.
as: "Berühmte Worte" in Primzhal [Prime Number]. June 1972. [German].
Galactic Dreams, April 1994.
Don't Open This Book!, edited by Marvin Kaye. New York: Science Fiction Book Club, March 1998, p.225-231, ISBN: 1-56865-524-X.