Classification
650 - Management & auxiliary services
658 - General management
34
330 - Economics
20
338 - Production
13
153 - Mental processes & intelligence
4
158 - Applied psychology
4
000 - Computer science, information & general works
3
331 - Labor economics
3
500 - Natural sciences & mathematics
3
670 - Manufacturing
3
300 - Social sciences
2
302 - Social interaction
2
333 - Economics of land & energy
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
004 - Data processing & computer science
1
006 - Special computer methods
1
320 - Political science
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
384 - Communications; telecommunication
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
629 - Other branches of engineering
1
657 - Accounting
1
720 - Architecture
1