Classification
658 - General management
330 - Economics
33
338 - Production
19
331 - Labor economics
17
381 - Commerce
15
006 - Special computer methods
13
005 - Computer programming, programs & data
11
300 - Social sciences
11
332 - Financial economics
10
302 - Social interaction
9
384 - Communications; telecommunication
9
004 - Data processing & computer science
7
380 - Commerce, communications & transportation
7
374 - Adult education
6
003 - Systems
5
670 - Manufacturing
5
500 - Natural sciences & mathematics
4
659 - Advertising & public relations
4
001 - Knowledge
3
368 - Insurance
3
650 - Management & auxiliary services
3
000 - Computer science, information & general works
2
065 - Organizations in Italy & adjacent islands
2
153 - Mental processes & intelligence
2
303 - Social processes
2
600 - Technology
2
620 - Engineering & allied operations
2
900 - History & geography
2
100 - Philosophy & psychology
1
150 - Psychology
1
152 - Perception, movement, emotions & drives
1
158 - Applied psychology
1
170 - Ethics
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
371 - Schools & their activities; special education
1
576 - Genetics & evolution
1
629 - Other branches of engineering
1
745 - Decorative arts
1
794 - Indoor games of skill
1