Columbia subject headings:
Spanish language--Dialects--Spain--Aragon.
Spanish language--Grammar, Historical.
Spanish language--To 1500.
Harvard subject headings:
Aragon (Spain)--Languages--Maps.
Aragonese language--Grammar, Historical.
Aragonese language.
Spanish language--Dialects--Spain--Aragon.
Spanish language--Grammar, Historical.
Spanish language--To 1500.
Princeton subject headings:
Spanish language--Dialects--Spain--Aragon.
Spanish language--Grammar, Historical.
Spanish language--To 1500.