Columbia subject headings:
China--Emigration and immigration--History--19th century.
China--Emigration and immigration--History--20th century.
Chinese--Foreign countries--History--19th century.
Chinese--Foreign countries--History--20th century.
Harvard subject headings:
China--Emigration and immigration.
Chinese--Foreign countries
Princeton subject headings:
China--Emigration and immigration--History--19th century.
China--Emigration and immigration--History--20th century.
Chinese--Foreign countries--History--19th century.
Chinese--Foreign countries--History--20th century.