Columbia subject headings:
Harvard subject headings:
English language--Europe, Eastern--History--19th century.
Europe, Eastern--Languages.
Language policy--Europe, Eastern--History--19th century.
Multiculturalism--Europe, Eastern--History--19th century.
Multilingualism--Europe, Eastern--History--19th century.
Sociolinguistics--Europe, Eastern--History--19th century.
Princeton subject headings:
English language--European, Eastern--History--19th century.
European, Eastern--Languages.
Language policy--European, Eastern--History--19th century.
Multiculturalism--European, Eastern--History--19th century.
Multilingualism--European, Eastern--History--19th century.
Sociolinguistics--European, Eastern--History--19th century.