Columbia subject headings:
Harvard subject headings:
Bilingualism--Wales.
Code switching (Linguistics)--Wales.
Corpora (Linguistics)--Research--Methodology.
English language--Grammar, Comparative--Welsh.
Languages in contact--Wales.
Welsh language--Grammar, Comparative--English.
Princeton subject headings:
Bilingualism--Wales.
Code switching (Linguistics)--Wales.
Corpora (Linguistics)--Research--Methodology.
English language--Grammar, Comparative--Welsh.
Languages in contact--Wales.
Welsh language--Grammar, Comparative--English.