Columbia subject headings:
Kant, Immanuel, 1724-1804--Congresses.
Philosophy of nature--Congresses.
Harvard subject headings:
Kant, Immanuel, 1724-1804--Congresses.
Kant, Immanuel, 1724-1804. Opus postumum--Congresses.
Philosophy of nature--Congresses
Philosophy, German--Congresses.
Princeton subject headings:
Kant, Immanuel, 1724-1804--Congresses.
Philosophy of nature--Congresses.