APA (7th ed.) Citation

NetLibrary, Inc, Eco, U., & Sebeok, T. A. (1983). The Sign of three: Dupin, Holmes, Peirce. Indiana University Press.

Chicago Style (17th ed.) Citation

NetLibrary, Inc, Umberto Eco, and Thomas A. Sebeok. The Sign of Three: Dupin, Holmes, Peirce. Bloomington: Indiana University Press, 1983.

MLA (9th ed.) Citation

NetLibrary, Inc, et al. The Sign of Three: Dupin, Holmes, Peirce. Indiana University Press, 1983.