Classification
657 - Accounting
900 - History & geography
330 - Economics
4
320 - Political science
3
340 - Law
2
140 - Specific philosophical schools
1
300 - Social sciences
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1
700 - The arts; fine & decorative arts
1