PN - General Literature 8,757
PE - English Languages 8,470
PL - Eastern Asia, Africa, Oceania 7,571
PR - English Literature 7,093
P - Philology and Linguistics 4,779
PZ - Fiction 4,725
PS - American Literature 4,398
PJ - Oriental 1,493
PQ - French, Italian, Spanish, Portuguese Literature 492
PC - Romanic Languages 411
PT - European, Asian and African Literature 283
PG - Slavic, Baltic, Abanian Languages 268
PF - West Germanic Languages 252
PA - Latin and Greek 185
PB - Modern and Celtic Languages 116
PK - Indo-Iranian 94
PD - Germanic Languages 26
PM - Hyperborean, Indian, and Artificial Languages 15
PH - Uralic, Basque Languages 14