Columbia subject headings:
Basel (Switzerland)--Archival resources.
Guilds--Switzerland--Basel--Archival resources.
Guilds--Switzerland--Basel--History--Sources.
Harvard subject headings:
Basel (Switzerland)--Archival resources.
Guilds--Switzerland--Basel--Archival resources.
Guilds--Switzerland--Basel--History--Sources.
Princeton subject headings:
Basel (Switzerland)--History--Sources.
Handicraft--Switzerland--Basel--History--Sources.