Classification
000 - Computer science, information & general works
380 - Commerce, communications & transportation
650 - Management & auxiliary services
158 - Applied psychology
3
330 - Economics
3
384 - Communications; telecommunication
3
331 - Labor economics
2
333 - Economics of land & energy
1
363 - Other social problems & services
1
530 - Physics
1
576 - Genetics & evolution
1
600 - Technology
1
658 - General management
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1