Columbia subject headings:
Russia--Civilization.
Russian language--1300-1700--Lexicology.
Russian language--Lexicology, Historical.
Russian language--To 1300--Lexicology.
Harvard subject headings:
Russia--Civilization.
Russian language--1300-1700--Lexicology.
Russian language--Lexicology, Historical.
Russian language--To 1300--Lexicology.
Princeton subject headings:
Russia--Civilization.
Russian language--1300-1700--Lexicology.
Russian language--Lexicology, Historical.
Russian language--To 1300--Lexicology.