Columbia subject headings:
Canada--Emigration and immigration.
Caribbean Area--Emigration and immigration.
Great Britain--Emigration and immigration.
Immigrants--Canada.
Immigrants--Great Britain.
Immigrants--United States.
United States--Emigration and immigration.
Harvard subject headings:
Canada--Emigration and immigration.
Caribbean Area--Emigration and immigration.
Great Britain--Emigration and immigration.
Immigrants--Canada
Immigrants--Great Britain
Immigrants--United States
United States--Emigration and immigration.
Princeton subject headings:
Canada--Emigration and immigration.
Caribbean Area--Emigration and immigration.
Great Britain--Emigration and immigration.
Immigrants--Canada.
Immigrants--Great Britain.
Immigrants--United States.
United States--Emigration and immigration.