Columbia subject headings:
Slavic languages--Bibliography.
Slavic languages--Social aspects--Bibliography.
Sociolinguistics--Bibliography.
Harvard subject headings:
Slavic languages--Social aspects--Bibliography.
Slavic philology--Bibliography.
Sociolinguistics--Bibliography.
Sociolinguistics--Slavic countries--Bibliography.
Princeton subject headings:
Slavic languages--Bibliography.
Slavic languages--Social aspects--Bibliography.
Sociolinguistics--Bibliography.