Columbia subject headings:
Lessing, Gotthold Ephraim, 1729-1781--Freemasonry.
Lessing, Gotthold Ephraim, 1729-1781. Ernst und Falk, Gespräche für Freymäurer.
Harvard subject headings:
Freemasonry in literature.
Freemasonry--Germany--History.
Lessing, Gotthold Ephraim, 1729-1781--Knowledge--Freemasonry.
Lessing, Gotthold Ephraim, 1729-1781. Ernst und Falk, Gespräche für Freymäuerer.
Princeton subject headings:
Freemasonry and literature.
Freemasonry--Germany--History.
Lessing, Gotthold Ephraim, 1729-1781--Freemasonry.
Lessing, Gotthold Ephraim, 1729-1781. Ernst und Falk.