Columbia subject headings:
Harvard subject headings:
City dwellers--Language--Congresses.
Languages in contact.
Multilingualism--Social aspects--Congresses.
Multilingualism--Social aspects.
Sociolinguistics--Congresses.
Sociolinguistics.
Urban dialects--Congresses.
Urban dialects.
Urban youth--Language--Congresses.
Youth--Language
Princeton subject headings:
Multilingualism--Social aspects.
Urban dialects.
Urban youth--Language.