Columbia subject headings:
Charterhouses--Belgium--History.
Charterhouses--Europe, Central--History.
Chartreuse de Liège.
Harvard subject headings:
Carthusians--Belgium--Liège--History.
Kartause Liège.
Liège (Belgium)--Church history.
Princeton subject headings:
Carthusians--Belgium--Liège--History.
Kartause Liège.
Liège (Belgium)--Church history.