Classification
170 - Ethics
100 - Philosophy & psychology
328
320 - Political science
159
140 - Specific philosophical schools
131
700 - The arts; fine & decorative arts
121
900 - History & geography
121
610 - Medicine & health
120
200 - Religion
115
330 - Economics
111
300 - Social sciences
90
340 - Law
86
600 - Technology
82
333 - Economics of land & energy
69
370 - Education
64
363 - Other social problems & services
54
000 - Computer science, information & general works
50
800 - Literature & rhetoric
34
620 - Engineering & allied operations
32
380 - Commerce, communications & transportation
30
120 - Epistemology, causation & humankind
29
301 - Sociology & anthropology
29
530 - Physics
23
400 - Language
20
361 - Social problems & social welfare in general
19
581 - Specific topics in natural history
19
551 - Geology, hydrology & meteorology
17
576 - Genetics & evolution
17
410 - Linguistics
16
500 - Natural sciences & mathematics
16
297 - Islam, Babism & Bahai Faith
15
580 - Plants (Botany)
15
630 - Agriculture & related technologies
12
304 - Factors affecting social behavior
10
658 - General management
9
720 - Architecture
6
780 - Music
6
360 - Social problems & services; associations
5
770 - Photography, photographs & computer art
4
160 - Logic
3
296 - Judaism
3
350 - Public administration & military science
3
364 - Criminology
3
414 - Phonology & phonetics
3
615 - Pharmacology & therapeutics
3
398 - Folklore
2
520 - Astronomy & allied sciences
2
657 - Accounting
2
791 - Public performances
2
540 - Chemistry & allied sciences
1
590 - Animals (Zoology)
1
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