PJ - Oriental 2,834
PA - Latin and Greek 1,052
PN - General Literature 216
PK - Indo-Iranian 199
P - Philology and Linguistics 189
PZ - Fiction 111
PQ - French, Italian, Spanish, Portuguese Literature 91
PL - Eastern Asia, Africa, Oceania 87
PT - European, Asian and African Literature 82
PR - English Literature 68
PS - American Literature 17
PE - English Languages 16
PG - Slavic, Baltic, Abanian Languages 16
PC - Romanic Languages 13
PF - West Germanic Languages 12
PM - Hyperborean, Indian, and Artificial Languages 3
PD - Germanic Languages 2
PB - Modern and Celtic Languages 1
PH - Uralic, Basque Languages 1