Columbia subject headings:
Lessing, Gotthold Ephraim, 1729-1781--Religion.
Harvard subject headings:
Lessing, Gotthold Ephraim, 1729-1781--Philosophy--Congresses.
Lessing, Gotthold Ephraim, 1729-1781--Religion--Congresses.
Philosophical theology--Congresses.
Religion--Philosophy--Congresses
Princeton subject headings:
Lessing, Gotthold Ephraim, 1729-1781--Religion.