Classification
150 - Psychology
1
153 - Mental processes & intelligence
1
158 - Applied psychology
4
300 - Social sciences
302 - Social interaction
6
320 - Political science
1
330 - Economics
331 - Labor economics
3
333 - Economics of land & energy
1
338 - Production
3
363 - Other social problems & services
1
380 - Commerce, communications & transportation
8
381 - Commerce
1
384 - Communications; telecommunication
7
500 - Natural sciences & mathematics
2
600 - Technology
1
610 - Medicine & health
1
650 - Management & auxiliary services
657 - Accounting
1
658 - General management
12
670 - Manufacturing
1
700 - The arts; fine & decorative arts
1