Columbia subject headings:
Harvard subject headings:
Language and languages--Variation
Languages in contact.
Linguistic change.
Romance languages--Phonology.
Romance languages--Variation.
Romance languages.
Stehl, Thomas--Bibliography.
Princeton subject headings:
Language and languages--Variation.
Languages in contact.
Linguistic change.
Romance languages--Phonology.
Romance languages--Variation.
Romance languages.
Stehl, Thomas--Bibliography.