Columbia subject headings:
Peirce, Charles S. (Charles Sanders), 1839-1914--Congresses.
Semiotics--Congresses.
Semiotics--Periodicals.
Signs and symbols--Periodicals.
Harvard subject headings:
Peirce, Charles S. (Charles Sanders), 1839-1914--Congresses.
Semiotics--Congresses.
Semiotics--Periodicals.
Signs and symbols--Periodicals.
Princeton subject headings:
Peirce, Charles S. (Charles Sanders), 1839-1914--Congresses.
Semiotics--Congresses.