Columbia subject headings:
Harvard subject headings:
Chomsky, Noam
Humboldt, Wilhelm von, 1767-1835.
Language and languages--Philosophy
Wittgenstein, Ludwig, 1889-1951
Princeton subject headings:
Chomsky, Noam.
Humboldt, Wilhelm von, 1767-1835.
Language and languages--Philosophy.
Wittgenstein, Ludwig, 1889-1951.