Columbia subject headings:
Architecture--Netherlands--Maastricht.
Historic buildings--Netherlands--Maastricht.
Maastricht (Netherlands)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Netherlands--Maastricht--Guidebooks.
Historic buildings--Netherlands--Maastricht--Guidebooks.
Maastricht (Netherlands)--Buildings, structures, etc.--Guidebooks.
Princeton subject headings:
Architecture--Netherlands--Maastricht.
Historic buildings--Netherlands--Maastricht.
Maastricht (Netherlands)--Buildings, structurres, etc.