Columbia subject headings:
English language--Standardization.
English language--Style.
English language--Variation.
English literature--History and criticism.
Harvard subject headings:
English language--Great Britain--Standardization.
English language--Great Britain--Style
English language--Variation--Great Britain
English language--Variation--History.
English literature--History and criticism
Princeton subject headings:
Colloquial language.
English language--History.
English language--Spoken English.
English literature--History and criticism.