Columbia subject headings:
Galician language--Dialectology.
Languages in contact.
Portuguese language--Dialectology.
Portuguese language--Influence on Spanish.
Spanish language--Dialectology.
Harvard subject headings:
Portuguese language--Dialectology.
Portuguese language--Influence on Spanish
Spanish language--Dialectology.
Princeton subject headings:
Portuguese language--Dialectology.
Portuguese language--Influence on Spanish.
Spanish language--Dialectology.