Columbia subject headings:
Harvard subject headings:
Astronomers--Germany--Biography--Exhibitions.
Cartographers--Germany--Biography--Exhibitions.
Mathematicians--Germany--Biography--Exhibitions.
Mayer, Tobias, 1723-1762--Exhibitions.
Princeton subject headings:
Astronomers--Germany.
Geographers--Germany.
Mayer, Tobias, 1723-1762.