P - Language and Literature

P General Linguistics
PA Greek and Latin Language and Literature
PB Modern European Languages, Celtic Languages and Literatures
PC Romance Languages
PD Old Germanic, Scandinavian
PE English
PF Dutch, German
PG Slavic
PH Finnish
PJ Oriental, Semitic
PK Indo-Iranian
PL East Asian, African, Oceania
PM Indigenous American, Artificial Languages
PN Literature (General)
PQ Romance Literature
PR English Literatures
PS American Literature
PS 8000 Canadian Literature (English)
PS 9000 Canadian Literature (French)
PT Germanic Literature
PZ Fiction and Juvenile Belles Lettres

Q - Science

Q General Science
QA Mathematics, Computer Science
QB Astronomy
QC Physics
QD Chemistry
QE Geology
QH Natural History, Biology
QK Botany
QL Zoology
QM Human Anatomy
QP Physiology
QR Microbiology

R - Medicine

R General Medicine
RA Public Aspects of Medicine
RB Pathology
RC Internal Medicine
RD Surgery
RE Ophthalmology
RF Ear, Nose, Throat
RG Gynecology, Obstetrics
RJ Pediatrics
RK Dentistry
RL Dermatology
RM Therapeutics, Pharmacology
RS Pharmacy
RT Nursing
RV Botanic, Eclectic Medicine
RX Homeopathy
RZ Other Systems of Medicine

S - Agriculture

S Agriculture (General)
SB Plant Agriculture
SD Forestry
SF Animal Culture
SH Aquaculture
SK Hunting Sports

A - D |  E - H |  J - N |  P - S |  T - Z

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