Columbia subject headings:
Austria--History--1789-1815.
Martinovics, Ignác, 1755-1795.
Secret societies--Austria.
Harvard subject headings:
Austria--History--1789-1815.
Martinovics, Ignác, 1755-1795.
Secret societies--Austria.
Princeton subject headings:
Austria--History--1789-1815.
Martinovics, Ignác, 1755-1795.
Secret societies--Austria.