Columbia subject headings:
Discourse analysis--Social aspects.
English language--Dialects.
English language--Variation--English-speaking countries.
English language--Variation--Foreign countries.
Harvard subject headings:
Discourse analysis--Social aspects--Congresses.
English language--Dialects--Congresses.
English language--Variation--English-speaking countries--Congresses.
English language--Variation--Foreign countries--Congresses.
Princeton subject headings: