Columbia subject headings:
Architecture--Vietnam--Huế--History--19th century.
Architecture--Vietnam--Huế--History--20th century.
Huế (Vietnam)--Buildings, structures, etc.
Huế (Vietnam)--Civilization.
Huế (Vietnam)--Description and travel.
Harvard subject headings:
Architecture, Modern--19th century--Vietnam--Huế--History.
Architecture, Modern--20th century--Vietnam--Huế--History.
Huế (Vietnam)--Buildings, structures, etc.
Huế (Vietnam)--Civilization.
Huế (Vietnam)--Description and travel.
Princeton subject headings:
Architecture--Vietnam--Huế--Pictorial works.
Art--Vietnam--Huế--Pictorial works.
Huế (Vietnam)--Pictorial works.