Classification
153 - Mental processes & intelligence
658 - General management
148
330 - Economics
132
338 - Production
124
650 - Management & auxiliary services
114
302 - Social interaction
56
300 - Social sciences
55
000 - Computer science, information & general works
38
158 - Applied psychology
18
500 - Natural sciences & mathematics
13
670 - Manufacturing
13
331 - Labor economics
9
001 - Knowledge
4
303 - Social processes
4
381 - Commerce
4
620 - Engineering & allied operations
4
745 - Decorative arts
3
006 - Special computer methods
2
384 - Communications; telecommunication
2
004 - Data processing & computer science
1
150 - Psychology
1
336 - Public finance
1
371 - Schools & their activities; special education
1
600 - Technology
1
621 - Applied physics
1
629 - Other branches of engineering
1
657 - Accounting
1