LIBRI GRAMMATICA SUGGERITI
- "A Comprehensive Grammar of the English Language" (authors: Randolph Quirk, Sidney Greenbaum, Geoffrey Leech, Jan Svartvik)
- "English Grammar in Use: A Self-Study Reference and Practice Book for Intermediate Students of English" (author: Raymond Murphy)
- "Longman Student Grammar of Spoken and Written English" (authors: Douglas Biber, Susan Conrad, Geoffrey Leech).
08 ottobre 2018