Sebeok, Thomas A. (NHC Fellow, 1980–81), ed. The Sign of Three: Dupin, Holmes, Peirce. Edited by Thomas A. Sebeok and Umberto Eco. Advances in Semiotics. Bloomington: Indiana University Press, 1983. ISBN 0253352355.
Sebeok, Thomas A. (NHC Fellow, 1980–81), ed. The Sign of Three: Dupin, Holmes, Peirce. Edited by Thomas A. Sebeok and Umberto Eco. Advances in Semiotics. Bloomington: Indiana University Press, 1983. ISBN 0253352355.