Columbia subject headings:
Harvard subject headings:
American Council on the Teaching of Foreign Languages--Congresses.
Common European framework of reference for languages--Congresses.
Language and languages--Ability testing--Congresses
Second language acquisition--Ability testing--Congresses.
Princeton subject headings:
American Council on the Teaching of Foreign Languages--Congresses.
Language and languages--Ability testing--Congresses.
Second language acquisition--Ability testing--Congresses.