Classification
657 - Accounting
700 - The arts; fine & decorative arts
333 - Economics of land & energy
5
000 - Computer science, information & general works
4
330 - Economics
4
320 - Political science
3
380 - Commerce, communications & transportation
3
600 - Technology
3
620 - Engineering & allied operations
3
363 - Other social problems & services
2
140 - Specific philosophical schools
1
500 - Natural sciences & mathematics
1
530 - Physics
1
576 - Genetics & evolution
1
630 - Agriculture & related technologies
1
720 - Architecture
1
800 - Literature & rhetoric
1
900 - History & geography
1