| Call Number | Subject |
|---|---|
| PC 4001-4009 | Periodicals. Serials |
| - PC 4001.A1-.A3 | - International |
| - PC 4001.A4-Z | - English & American |
| - PC 4008 | - Spanish |
| PC 4021 | Congresses |
| PC 4023-4027 | Collections (nonserial) |
| - PC 4026.A-Z | - Studies in honor of a particular person or institution, A-Z |
| - PC 4027 | - Individual authors |
| PC 4051-4064 | History of philology see also PC4075+ History of the language |
| - PC 4052 | - General special |
| - PC 4060.A-Z | - By region or country, A-Z |
| - PC 4063-4064 | - Biography, memoirs, etc. |
| - - PC 4064.A-Z | - - Individual, A-Z |
| PC 4065-4069.5 | Study & teaching. Research |
| - PC 4065 | - General works |
| - PC 4066 | - General special |
| - PC 4068.A-Z | - By region or country, A-Z |
| - - PC 4068.P7 | - - Puerto Rico |
| - - PC 4068.U5 | - - United States |
| PC 4070-4071 | General works |