PN - General Literature 509
P - Philology and Linguistics 456
PQ - French, Italian, Spanish, Portuguese Literature 448
PA - Latin and Greek 172
PC - Romanic Languages 115
PE - English Languages 37
PS - American Literature 36
PR - English Literature 32
PB - Modern and Celtic Languages 27
PT - European, Asian and African Literature 20
PM - Hyperborean, Indian, and Artificial Languages 16
PJ - Oriental 15
PG - Slavic, Baltic, Abanian Languages 14
PL - Eastern Asia, Africa, Oceania 14
PZ - Fiction 11
PF - West Germanic Languages 5
PH - Uralic, Basque Languages 4
PK - Indo-Iranian 3
PD - Germanic Languages 1