What subjects do the call letters cover?
Subclass P Philology. Linguistics.
Subclass PA Greek language and literature. Latin language and literature.
Subclass PB Modern languages. Celtic languages.
Subclass PC Romance languages.
Subclass PD Germanic languages. Scandinavian languages.
Subclass PE English language.
Subclass PF West Germanic languages.
Subclass PG Slavic languages. Baltic languages. Albanian language.
Subclass PH Uralic languages. Basque language.
Subclass PJ Oriental languages and literatures.
Subclass PK Indo-Iranian languages and literatures.
Subclass PL Languages and literatures of Eastern Asia, Africa, Oceania.
Subclass PM Hyperborean, Indian, and artificial languages.
Subclass PN Literature (General).
Subclass PQ French literature, Italian literature, Spanish literature, Portuguese literature.
Subclass PR English literature.
Subclass PS American literature.
Subclass PT German literature, Dutch literature, Flemish literature since 1830, Afrikaans literature, Scandinavian literature, Old Norse literature: Old Icelandic and Old Norwegian, Modern Icelandic literature, Faroese literature, Danish literature, Norwegian literature, Swedish literature.
Subclass PZ Fiction and juvenile belles lettres.