1. - CP: Collected Papers of Charles Sanders Peirce, eds. C. Hartshorne and P. Weiss, voll. 1-6, Harvard University Press, Cambridge (MA) 1931-35; ed. A. Burks, voll. 7-8, Harvard University Press, Cambridge (MA) 1958.
2. - CE: Writings of Charles S. Peirce: A Chronological Edition, 9 voll., ed. The Peirce Edition Project, Indiana University Press, Bloomington (IN) 1982-2000.
3. - EP: The Essential Peirce: Selected Philosophical Writings, eds. N. Houser and C. Kloesel, vol. 1, Indiana University Press, Bloomington (IN) 1992; ed. The Peirce Edition Project, vol. 2, Indiana University Press, Bloomington (IN) 1998.
4. - MS: The Charles S. Peirce Papers, microfilm edition, Harvard University Library, Photographic Service, Cambridge 1966; i numeri indicano i manoscritti provenienti dall’Annotated Catalogue of the Papers of Charles S. Peirce, ed. R. Robin, University of Massachusetts Press, Amherst 1967.
5. - NEM: The New Elements of Mathematics by Charles S. Peirce, ed. C. Eisele, Mouton, The Hague 1976.