Columbia subject headings:
Harvard subject headings:
Freemasons.
Mozart, Wolfgang Amadeus, 1756-1791--Freemasonry.
Mozart, Wolfgang Amadeus, 1756-1791. Die Zauberflöte.
Mozart, Wolfgang Amadeus, 1756-1791. Zauberflöte.
Princeton subject headings:
Freemasons.
Mozart, Wolfgang Amadeus, 1756-1791. Die Zauberflöte.