Columbia subject headings:
Ungers, O. M. (Oswald Mathias)
Harvard subject headings:
Architects--Germany (West)
Architecture, Modern--20th century--Germany (West)--Designs and plans.
Architecture--Germany (West)--History--Catalogs.
Ungers, O. M. (Oswald Mathias)
Ungers, O. M. (Oswald Mathias)--Catalogs.
Princeton subject headings:
Architecture, Modern--20th century--Germany (West)--Catalogs.
Architecture--Germany (West)--Catalogs.
Ungers, O. M. (Oswald Mathias)--Catalogs.