Classification
370 - Education
700 - The arts; fine & decorative arts
33
333 - Economics of land & energy
30
600 - Technology
27
610 - Medicine & health
23
000 - Computer science, information & general works
19
100 - Philosophy & psychology
19
330 - Economics
15
380 - Commerce, communications & transportation
14
140 - Specific philosophical schools
13
320 - Political science
12
363 - Other social problems & services
12
620 - Engineering & allied operations
11
900 - History & geography
11
400 - Language
8
300 - Social sciences
7
551 - Geology, hydrology & meteorology
6
500 - Natural sciences & mathematics
5
800 - Literature & rhetoric
5
410 - Linguistics
4
780 - Music
4
170 - Ethics
3
340 - Law
3
530 - Physics
3
658 - General management
3
720 - Architecture
3
576 - Genetics & evolution
2
580 - Plants (Botany)
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
200 - Religion
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
520 - Astronomy & allied sciences
1
657 - Accounting
1