Columbia subject headings:
Harvard subject headings:
Basel (Switzerland)--Church history--16th century--Congresses.
Humanists--Switzerland--Basel--History--16th century--Congresses.
Reformation--Switzerland--Basel--Congresses.
Princeton subject headings:
Basel (Switzerland)--Church history--16th century--Congresses.
Humanists--Switzerland--Basel--History--16th century--Congresses.
Reformation--Switzerland--Basel--Congresses.