Columbia subject headings:
English language--Dialects--England--Durham.
English language--Dialects--England--Northumberland.
English language--Dialects--England--Yorkshire.
Harvard subject headings:
English language--Dialects--Durham.
English language--Dialects--England--Durham.
English language--Dialects--England--Northumberland.
English language--Dialects--England--Yorkshire.
Princeton subject headings: