Columbia subject headings:
Sociolinguistics--Mexico--Monterrey--Congresses.
Spanish language--Dialects--Mexico--Monterrey--Congresses.
Spanish language--Social aspects--Mexico--Monterrey--Congresses.
Harvard subject headings:
Sociolinguistics--Mexico--Monterrey--Congresses.
Spanish language--Mexico--Monterrey--Spoken Spanish--Congresses.
Spanish language--Spoken Spanish--Mexico--Monterrey--Congresses.
Princeton subject headings: