Columbia subject headings:
English language--Political aspects--Puerto Rico.
Language and culture--Puerto Rico.
Language policy--Puerto Rico.
Spanish language--Political aspects--Puerto Rico.
Harvard subject headings:
Bilingualism--Puerto Rico.
English language--Study and teaching--Puerto Rico.
Language policy--Puerto Rico.
Spanish language--Study and teaching--Puerto Rico.
Princeton subject headings:
English language--Political aspects--Puerto Rico.
Language and culture--Puerto Rico.
Language policy--Puerto Rico.
Spanish language--Political aspects--Puerto Rico.