Columbia subject headings:
Harvard subject headings:
Education and state--Congresses.
Education, Bilingual--Congresses
Language and education--Congresses
Multicultural education--Congresses
Multiculturalism--Congresses
Multilingual education--Congresses.
Multilingualism--Congresses.
Princeton subject headings:
Languages, Modern--Study and teaching.
Multicultural education.
Multilingualism.