Columbia subject headings:
Architecture--Japan--History--20th century.
Nikken Sekkei, Kabushiki Kaisha--Criticism and interpretation.
Harvard subject headings:
Architectural firms--Japan.
Architecture, Japanese.
Architecture--Japan--History--20th century
Nikken Sekkei, Kabushiki Kaisha.
Princeton subject headings:
Architecture--Japan--History--20th century.
Nikken Sekkei, Kabushiki Kaisha.