Columbia subject headings:
Kant, Immanuel, 1724-1804--Correspondence.
Kant, Immanuel, 1724-1804--Criticism and interpretation.
Harvard subject headings:
Kant, Immanuel, 1724-1804--Correspondence.
Kant, Immanuel, 1724-1804--Manuscripts.
Princeton subject headings:
Kant, Immanuel, 1724-1804--Criticism and interpretation.
Kant, Immanuel, 1724-1804. Correspondence.