Columbia subject headings:
Ponickau, Johann August von, 1718-1802--Library--Exhibitions.
Private libraries--Germany--Halle an der Saale--Exhibitions.
Universitäts- und Landesbibliothek Sachsen-Anhalt--Exhibitions.
Harvard subject headings:
Princeton subject headings:
Book collectors--Germany--Exhibitions.
Ponickau, Johann August von, 1718-1802.
Private libraries--Germany--History--Exhibitions.