Columbia subject headings:
Bilingualism--Case studies.
Grammar, Comparative and general--Case studies.
Linguistic change--Case studies.
Minimalist theory (Linguistics)
Portuguese language--Ability testing--Case studies.
Portuguese language--Acquisition--Case studies.
Second language acquisition--Case studies.
Harvard subject headings:
Bilingualism--Case studies.
Grammar, Comparative and general--Case studies.
Linguistic change--Case studies.
Minimalist theory (Linguistics)
Portuguese language--Ability testing--Case studies.
Portuguese language--Acquisition--Case studies.
Second language acquisition--Case studies.
Princeton subject headings: