Classification
000 - Computer science, information & general works
491
100 - Philosophy & psychology
51
120 - Epistemology, causation & humankind
4
140 - Specific philosophical schools
201
160 - Logic
5
170 - Ethics
30
200 - Religion
16
297 - Islam, Babism & Bahai Faith
3
300 - Social sciences
48
301 - Sociology & anthropology
17
304 - Factors affecting social behavior
27
320 - Political science
159
330 - Economics
365
333 - Economics of land & energy
696
336 - Public finance
2
338 - Production
2
340 - Law
85
350 - Public administration & military science
4
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
12
363 - Other social problems & services
377
364 - Criminology
2
370 - Education
102
380 - Commerce, communications & transportation
289
398 - Folklore
2
400 - Language
54
410 - Linguistics
24
414 - Phonology & phonetics
85
500 - Natural sciences & mathematics
107
520 - Astronomy & allied sciences
5
530 - Physics
51
540 - Chemistry & allied sciences
108
550 - Earth sciences
3
551 - Geology, hydrology & meteorology
86
576 - Genetics & evolution
168
580 - Plants (Botany)
217
581 - Specific topics in natural history
39
600 - Technology
603 - Dictionaries & encyclopedias
1
610 - Medicine & health
348
612 - Human physiology
24
615 - Pharmacology & therapeutics
10
620 - Engineering & allied operations
1,076
630 - Agriculture & related technologies
143
650 - Management & auxiliary services
3
657 - Accounting
7
658 - General management
56
700 - The arts; fine & decorative arts
720 - Architecture
95
770 - Photography, photographs & computer art
14
more ...