Columbia subject headings:
Harvard subject headings:
Spanish language--Dialects--Spain--Aragon--Maps.
Spanish language--Dialects--Spain--La Rioja--Maps.
Spanish language--Dialects--Spain--Navarre--Maps.
Princeton subject headings:
Spanish language--Dialects--Spain--Aragon--Maps.
Spanish language--Dialects--Spain--La Rioja--Maps.
Spanish language--Dialects--Spain--Navarre--Maps.
Spanish language--Maps.