Columbia subject headings:
Africa--Languages--Political aspects.
English language--Social aspects--Nigeria.
Language policy--Africa.
Nigeria--Languages--Political aspects.
Sociolinguistics--Africa.
Sociolinguistics--Nigeria.
Harvard subject headings:
English language--Social aspects--Nigeria.
Language policy--Africa.
Language policy--Nigeria.
Sociolinguistics--Africa.
Sociolinguistics--Nigeria.
Princeton subject headings: