Columbia subject headings:
Harvard subject headings:
Canada--Ethnic relations.
Galicia (Poland and Ukraine)--Emigration and immigration--20th century.
Poland--History--Wars of 1918-1921--Foreign public opinion.
Poland--Relations--Ukraine
Polish people--Canada--History--20th century.
Ukraine--Relations--Poland.
Ukrainians--Canada--History--20th century.
Ukrainians--Canada--Politics and government--20th century.
Princeton subject headings:
Canada--Ethnic relations.
Poland--Relations--Ukraine.
Ukraine--Relations--Poland.
Ukrainians--Canada--History--20th century.