Classification
364 - Criminology
340 - Law
122
331 - Labor economics
118
005 - Computer programming, programs & data
100
500 - Natural sciences & mathematics
99
363 - Other social problems & services
69
300 - Social sciences
52
330 - Economics
45
320 - Political science
37
658 - General management
32
000 - Computer science, information & general works
23
900 - History & geography
22
338 - Production
18
361 - Social problems & social welfare in general
17
360 - Social problems & services; associations
15
620 - Engineering & allied operations
14
001 - Knowledge
12
100 - Philosophy & psychology
12
384 - Communications; telecommunication
12
600 - Technology
10
610 - Medicine & health
9
301 - Sociology & anthropology
8
140 - Specific philosophical schools
7
006 - Special computer methods
6
302 - Social interaction
6
700 - The arts; fine & decorative arts
6
621 - Applied physics
5
170 - Ethics
4
333 - Economics of land & energy
4
345 - Criminal law
4
355 - Military science
4
370 - Education
4
800 - Literature & rhetoric
4
004 - Data processing & computer science
3
303 - Social processes
3
304 - Factors affecting social behavior
3
332 - Financial economics
3
380 - Commerce, communications & transportation
3
381 - Commerce
3
630 - Agriculture & related technologies
3
368 - Insurance
2
374 - Adult education
2
650 - Management & auxiliary services
2
670 - Manufacturing
2
720 - Architecture
2
745 - Decorative arts
2
025 - Library operations
1
150 - Psychology
1
153 - Mental processes & intelligence
1
160 - Logic
1
more ...