Classification
658 - General management
235
330 - Economics
55
004 - Data processing & computer science
24
610 - Medicine & health
13
000 - Computer science, information & general works
11
338 - Production
10
600 - Technology
10
005 - Computer programming, programs & data
8
333 - Economics of land & energy
8
340 - Law
8
570 - Life sciences; biology
8
900 - History & geography
8
580 - Plants (Botany)
7
700 - The arts; fine & decorative arts
7
320 - Political science
6
670 - Manufacturing
6
300 - Social sciences
5
363 - Other social problems & services
5
381 - Commerce
5
500 - Natural sciences & mathematics
5
620 - Engineering & allied operations
5
650 - Management & auxiliary services
5
302 - Social interaction
4
370 - Education
4
380 - Commerce, communications & transportation
4
346 - Private law
3
355 - Military science
3
551 - Geology, hydrology & meteorology
3
820 - English & Old English literatures
3
006 - Special computer methods
2
170 - Ethics
2
174 - Occupational ethics
2
331 - Labor economics
2
360 - Social problems & services; associations
2
368 - Insurance
2
623 - Military & nautical engineering
2
720 - Architecture
2
140 - Specific philosophical schools
1
150 - Psychology
1
153 - Mental processes & intelligence
1
158 - Applied psychology
1
179 - Other ethical norms
1
200 - Religion
1
332 - Financial economics
1
336 - Public finance
1
337 - International economics
1
350 - Public administration & military science
1
352 - General considerations of public administration
1
353 - Specific fields of public administration
1
359 - Sea forces & warfare
1
more ...