Columbia subject headings:
Harvard subject headings:
Freemasonry--Austria--Vienna--History--18th century--Sources.
Freemasonry--Czech Republic--Prague--History--18th century--Sources.
Freemasons--Czech Republic--Prague--History.
Freemasons. Loge zu den 3 gekrönten Säulen.--History--18th century--Sources.
Princeton subject headings:
Freemasonry--Czech Republic--Prague--History--18th century--Sources.
Freemasons. Loge zu den 3 gekrönten Säulen.--History--18th century--Sources.