Columbia subject headings:
Cities and towns--Vietnam--Pictorial works.
Đà Nẵng (Vietnam)--History--Pictorial works.
Đà Nẵng (Vietnam)--Pictorial works.
Harvard subject headings:
Cities and towns--Vietnam--Pictorial works.
Đà Nẵng (Vietnam)--History--Pictorial works.
Đà Nẵng (Vietnam)--Pictorial works.
Princeton subject headings: