Columbia subject headings:
Freemasonry--Austria--Vienna--History--18th century.
Mozart, Wolfgang Amadeus, 1756-1791--Freemasonry.
Harvard subject headings:
Freemasonry--Austria--Vienna--History--18th century.
Mozart, Wolfgang Amadeus, 1756-1791--Freemasonry.
Princeton subject headings:
Freemasonry--Austria--Vienna--History--18th century.
Mozart, Wolfgang Amadeus, 1756-1791--Freemasonry.