Columbia subject headings:
Architecture--Germany--Dortmund--Guidebooks.
Dortmund (Germany)--Buildings, structures, etc.--Guidebooks.
Harvard subject headings:
Architecture--Germany--Dortmund--Guidebooks.
Dortmund (Germany)--Buildings, structures, etc.--Guidebooks.
Princeton subject headings:
Architecture--Germany (West)--Dortmund--Guidebooks.
Dortmund (Germany)--Buildings, structures, etc.--Guidebooks.