Columbia subject headings:
Harvard subject headings:
Language and culture--Globalization.
Language and education.
Language and languages--Globalization.
Language and languages--Study and teaching
Language and languages--Variation
Literacy
Multilingualism.
Sociolinguistics.
Princeton subject headings:
Language and culture--Globalization.
Language and education.
Language and languages--Globalization.
Language and languages--Study and teaching.
Language and languages--Variation.
Literacy.
Multilingualism.
Sociolinguistics.