Columbia subject headings:
Hamann, Johann Georg, 1730-1788--Congresses.
Harvard subject headings:
Aesthetics, Modern--18th century--Congresses.
Hamann, Johann Georg, 1730-1788--Congresses.
Philosophy of nature--History--Congresses.
Philosophy, German--18th century--Congresses.
Princeton subject headings:
Hamann, Johann Georg, 1730-1788--Congresses.