Columbia subject headings:
Bridges--Belgium--Liège--History.
Pont de Fragnée (Belgium)
Harvard subject headings:
Bridges--Belgium--Liège.
Liège (Belgium)--Buildings, structures, etc.
Pont de Fragnée (Liège, Belgium)
Princeton subject headings:
Bridges--Belgium--Liège.
Liège (Belgium)--Buildings, structures, etc.
Pont de Fragnée (Liège, Belgium)