Classification
140 - Specific philosophical schools
300 - Social sciences
320 - Political science
6
330 - Economics
4
340 - Law
3
370 - Education
3
600 - Technology
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
620 - Engineering & allied operations
2
900 - History & geography
2
100 - Philosophy & psychology
1
200 - Religion
1
363 - Other social problems & services
1
400 - Language
1
500 - Natural sciences & mathematics
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1