Classification
100 - Philosophy & psychology
370 - Education
300 - Social sciences
141
700 - The arts; fine & decorative arts
90
900 - History & geography
67
333 - Economics of land & energy
63
320 - Political science
62
140 - Specific philosophical schools
44
610 - Medicine & health
44
600 - Technology
42
400 - Language
38
380 - Commerce, communications & transportation
31
500 - Natural sciences & mathematics
31
170 - Ethics
28
000 - Computer science, information & general works
26
330 - Economics
25
200 - Religion
22
301 - Sociology & anthropology
22
780 - Music
21
340 - Law
19
363 - Other social problems & services
19
304 - Factors affecting social behavior
17
410 - Linguistics
17
800 - Literature & rhetoric
17
620 - Engineering & allied operations
16
530 - Physics
10
120 - Epistemology, causation & humankind
6
361 - Social problems & social welfare in general
6
576 - Genetics & evolution
6
360 - Social problems & services; associations
4
364 - Criminology
4
540 - Chemistry & allied sciences
4
658 - General management
4
770 - Photography, photographs & computer art
4
297 - Islam, Babism & Bahai Faith
3
581 - Specific topics in natural history
3
720 - Architecture
3
296 - Judaism
2
551 - Geology, hydrology & meteorology
2
612 - Human physiology
2
630 - Agriculture & related technologies
2
657 - Accounting
2
160 - Logic
1
398 - Folklore
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1
580 - Plants (Botany)
1
615 - Pharmacology & therapeutics
1
791 - Public performances
1
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