Columbia subject headings:
Cathedrals (Canon law)--History.
Church architecture (Canon law)--History.
Church buildings--Europe--History.
Law, Medieval.
Harvard subject headings:
Cathedrals (Canon law)--History.
Church architecture (Canon law)--History.
Church buildings--Europe--History.
Law, Medieval.
Princeton subject headings:
Cathedrals (Canon law)
Chapters, Cathedral, collegiate, etc.
Chapters, Cathedral, collegiate, etc. (Canon law)
Church architecture (Canon law)
Church architecture--Europe.