Columbia subject headings:
Harvard subject headings:
Ailly, Pierre d', 1350-1420?--Contributions in philosophy of language--Congresses.
Heraclitus, of Ephesus--Contributions in philosophy of language--Congresses.
Language and languages--Philosophy--Congresses
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Contributions in philosophy of language--Congresses.
Linguistics--History--Congresses
Princeton subject headings:
Ailly, Pierre d', 1350-1420?
Heraclitus, of Ephesus
Language and languages--Philosophy--Congresses.
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716.
Linguistics--History--Congresses.