Columbia subject headings:
Harvard subject headings:
Imperialism--History
Japan--Foreign relations--20th century.
Japan--History--20th century.
Manchuria (China)--History.
World politics--1900-1945
Princeton subject headings:
Imperialism--History.
Japan--Foreign relations--20th century.
Japan--History--20th century.
Manchuria (China)--History.
World politics--1900-1945.