Columbia subject headings:
Burgos (Spain)--Church history--Sources.
Catedral de Burgos--History--Sources.
Harvard subject headings:
Burgos (Spain)--Church history--Sources.
Catedral de Burgos--History--Sources.
Cathedrals--Spain
Church history--Middle Ages, 600-1500--Sources.
Princeton subject headings:
Burgos (Spain)--Church history--Sources.
Catedral de Burgos--History--Sources.