Columbia subject headings:
Church Slavic language--Grammar--History.
Church Slavic language--Russian recension.
Linguistics--Soviet Union--History.
Harvard subject headings:
Church Slavic language--Grammar--History.
Church Slavic language--Russian recension
Linguistics--Soviet Union--History.
Princeton subject headings:
Church Slavic language--Grammar--History.
Church Slavic language--Russian recension.
Linguistics--Soviet Union--History.