Classification
100 - Philosophy & psychology
330 - Economics
380 - Commerce, communications & transportation
320 - Political science
8
140 - Specific philosophical schools
5
300 - Social sciences
5
600 - Technology
5
400 - Language
4
620 - Engineering & allied operations
4
700 - The arts; fine & decorative arts
4
780 - Music
4
900 - History & geography
4
000 - Computer science, information & general works
3
370 - Education
3
410 - Linguistics
2
657 - Accounting
2
658 - General management
2
170 - Ethics
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
800 - Literature & rhetoric
1