Classification
330 - Economics
658 - General management
34
657 - Accounting
28
320 - Political science
20
300 - Social sciences
13
338 - Production
12
332 - Financial economics
10
363 - Other social problems & services
9
331 - Labor economics
8
500 - Natural sciences & mathematics
8
900 - History & geography
7
333 - Economics of land & energy
6
620 - Engineering & allied operations
6
700 - The arts; fine & decorative arts
6
302 - Social interaction
5
368 - Insurance
5
600 - Technology
5
380 - Commerce, communications & transportation
4
670 - Manufacturing
4
000 - Computer science, information & general works
3
340 - Law
3
346 - Private law
3
170 - Ethics
2
370 - Education
2
580 - Plants (Botany)
2
610 - Medicine & health
2
001 - Knowledge
1
005 - Computer programming, programs & data
1
011 - Bibliographies
1
140 - Specific philosophical schools
1
158 - Applied psychology
1
160 - Logic
1
336 - Public finance
1
345 - Criminal law
1
352 - General considerations of public administration
1
361 - Social problems & social welfare in general
1
384 - Communications; telecommunication
1
400 - Language
1
410 - Linguistics
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
650 - Management & auxiliary services
1
651 - Office services
1
800 - Literature & rhetoric
1
808 - Rhetoric & collections of literature
1