Columbia subject headings:
Linguistics--Research--Soviet Union--History.
Russian language--Study and teaching--History.
Harvard subject headings:
Linguistics--Russia--History--18th century.
Linguistics--Russia--History--19th century.
Russian language--Grammar--Theory, etc.
Princeton subject headings:
Linguistics--Research--Soviet Union--History.
Russian language--Grammar--1870-1950--Study and teaching.
Russian language--Study and teaching--History.