Columbia subject headings:
Harvard subject headings:
Interlanguage (Language learning)
Italian language--Clitics.
Second language acquisition.
Princeton subject headings:
Grammar, Comparative and general--Clitics.
Grammar, Comparative and general--Pronominals.
Interlanguage (Language learning)
Italian language--Acquisition.
Italian language--Clitics.
Italian language--Pronominals.
Italian language--Study and teaching--Foreign speakers.
Language acquisition.
Second language acquisition.