Classification
140 - Specific philosophical schools
370 - Education
191
700 - The arts; fine & decorative arts
61
333 - Economics of land & energy
55
610 - Medicine & health
52
900 - History & geography
47
100 - Philosophy & psychology
44
320 - Political science
42
330 - Economics
41
600 - Technology
40
000 - Computer science, information & general works
39
300 - Social sciences
38
363 - Other social problems & services
38
380 - Commerce, communications & transportation
31
340 - Law
28
170 - Ethics
18
200 - Religion
18
400 - Language
18
620 - Engineering & allied operations
17
301 - Sociology & anthropology
14
576 - Genetics & evolution
14
551 - Geology, hydrology & meteorology
12
800 - Literature & rhetoric
12
410 - Linguistics
11
304 - Factors affecting social behavior
10
658 - General management
9
297 - Islam, Babism & Bahai Faith
7
500 - Natural sciences & mathematics
6
720 - Architecture
6
530 - Physics
5
580 - Plants (Botany)
4
581 - Specific topics in natural history
4
770 - Photography, photographs & computer art
4
780 - Music
4
630 - Agriculture & related technologies
3
120 - Epistemology, causation & humankind
2
360 - Social problems & services; associations
2
364 - Criminology
2
414 - Phonology & phonetics
2
160 - Logic
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
657 - Accounting
1