Columbia subject headings:
Hotels--Korea (South)--Seoul--History.
Korea--Civilization--1392-1910.
Korea--History--1864-1910.
Sontag Hotel (Seoul, Korea)--History.
Harvard subject headings:
Hotels--Korea (South)--Seoul--History.
Seoul (Korea)--History--20th century.
Seoul (Korea)--Social life and customs--20th century.
Sontag hotel (Seoul, Korea)
Princeton subject headings:
Hotels--Korea (South)--Seoul--History.
Seoul (Korea)--History--20th century.
Seoul (Korea)--Social life and customs--20th century.
Sontag Hotel (Seoul, Korea)