Columbia subject headings:
English language--Dialects--United States.
English language--Standardization.
English language--Variation.
Sociolinguistics.
Harvard subject headings:
English language--Dialects--United States
English language--Standardization
English language--Variation
Sociolinguistics.
Princeton subject headings:
English language--Dialects--United States.
English language--Standardization.
English language--Variation.
Sociolinguistics.