| Call Number | Subject |
|---|---|
| PC 1700-1977 | Linguistic geography. Dialects. Provincialisms, etc. |
| - PC 1781-1945 | - By region, province, etc. |
| - - PC 1786-1819 | - - Southern dialects |
| - - - PC 1801-1802 | - - - Sicily |
| - - - PC 1811-1814 | - - - Campania |
| - - PC 1841-1879 | - - Northern dialects |
| - - PC 1910-1945 | - - Italian in foreign parts |
| - PC 1951-1977 | - Slang. Argot |