Columbia subject headings:
Harvard subject headings:
Korea--History--Japanese occupation, 1910-1945.
Railroads and state--Korea--20th century.
Railroads--Korea--20th century.
Roads--Government policy--Korea--20th century.
Transportation and state--Korea--20th century.
Transportation--Korea--20th century.
Princeton subject headings:
Korea--History--Japanese occupation, 1910-1945.
Transportation and state--Korea--History.
Transportation--Korea--History.