Classification
320 - Political science
330 - Economics
3
333 - Economics of land & energy
380 - Commerce, communications & transportation
600 - Technology
657 - Accounting
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
2
363 - Other social problems & services
2
140 - Specific philosophical schools
1
300 - Social sciences
1
530 - Physics
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
650 - Management & auxiliary services
1
800 - Literature & rhetoric
1