PS - American Literature 18,347
PR - English Literature 15,722
PN - General Literature 10,924
PQ - French, Italian, Spanish, Portuguese Literature 6,226
PT - European, Asian and African Literature 3,221
PA - Latin and Greek 3,051
PG - Slavic, Baltic, Abanian Languages 2,340
PL - Eastern Asia, Africa, Oceania 1,199
P - Philology and Linguistics 1,125
PZ - Fiction 767
PE - English Languages 685
PJ - Oriental 599
PC - Romanic Languages 330
PK - Indo-Iranian 247
PH - Uralic, Basque Languages 84
PF - West Germanic Languages 74
PM - Hyperborean, Indian, and Artificial Languages 61
PB - Modern and Celtic Languages 47
PD - Germanic Languages 13