Classification
370 - Education
500 - Natural sciences & mathematics
600 - Technology
620 - Engineering & allied operations
333 - Economics of land & energy
7
700 - The arts; fine & decorative arts
6
900 - History & geography
6
100 - Philosophy & psychology
5
300 - Social sciences
5
363 - Other social problems & services
5
540 - Chemistry & allied sciences
5
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
000 - Computer science, information & general works
3
320 - Political science
3
330 - Economics
3
530 - Physics
3
720 - Architecture
3
400 - Language
2
657 - Accounting
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
340 - Law
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
658 - General management
1
780 - Music
1
800 - Literature & rhetoric
1