Columbia subject headings:
Language acquisition--Congresses.
Language and languages--Study and teaching--Congresses.
Linguistic universals--Congresses.
Harvard subject headings:
Language acquisition--Congresses.
Language and languages--Study and teaching--Congresses
Linguistic universals--Congresses.
Princeton subject headings:
Language acquisition--Congresses.
Language and languages--Study and teaching--Congresses.
Linguistic universals--Congresses.