Columbia subject headings:
Language and languages--Study and teaching--Congresses.
Sublanguage--Congresses.
Terms and phrases--Congresses.
Harvard subject headings:
Language and languages--Study and teaching--Congresses
Sublanguage--Congresses.
Terms and phrases--Congresses
Princeton subject headings:
Language and languages--Study and teaching--Congresses.
Sublanguage--Congresses.
Terms and phrases--Congresses.