To find print reference sources for a specific subject, browse the appropriate call number ranges in the reference area in the appropriate library:
A -- General Works (General encyclopedias, almanacs, indexes, etc)
B-BD, BH-BJ -- Philosophy
BF -- Psychology
BL-BX -- Religion
C -- Historical Related (archaeology, biography, chronology, etc)
D -- History: General and Old World
E-F -- History: America
G-GF -- Geography
GN-GT -- Anthropology
GV -- Sports/Recreation/Leisure
HA -- Statistics
HB-HJ -- Economics
HM-HX -- Sociology
J -- Political Science
K -- Law
L -- Education
M -- Music
N -- Fine Arts
P -- Philology/Linguistics
PA -- Classical Languages and Literature
PC -- Romance Languages
PD, PF -- Germanic Languages
PE -- English Language
PG -- Slavic Languages and Literatures
PJ -- Oriental/Semitic Languages and Literatures
PK -- Indo-Iranian Languages and Literatures
PL -- East Asian, African, Oceanic Languages and Literatures
PN -- General Literature (history, genres, etc)
PQ -- Romance Literature
PR -- English Literature
PS -- American Literature
PT -- Germanic Literature
Q -- Science (General)
QA -- Mathematics
QB -- Astronomy
QC -- Physics
QD -- Chemistry
QE -- Geology
QH-QR -- Biology
R -- Medicine
S -- Agriculture
T -- Technology
U-V -- Military
Z -- Bibliography/Libraries