Columbia subject headings:
Harvard subject headings:
Japan--Foreign relations--1868-1912
Japan--Foreign relations--1912-1945.
Japan--History--20th century.
Japan--Politics and government--1868-1912.
Japan--Politics and government--1912-1945.
Princeton subject headings:
Japan--Foreign relations--20th century.
Japan--History--20th century.
Japan--Politics and government--20th century.