Columbia subject headings:
Ethnic schools--Poland.
Minorities--Education--Poland.
Harvard subject headings:
Ethnic schools--Poland--History--20th century.
Ethnic schools--Poland--History--21st century.
Ethnic schools--Poland--Kaszuby.
Ethnic schools--Poland.
Minorities--Education--Poland--History--20th century.
Minorities--Education--Poland--History--21st century.
Minorities--Education--Poland.
Princeton subject headings: