Classification
340 - Law
806
330 - Economics
433
333 - Economics of land & energy
47
610 - Medicine & health
43
320 - Political science
40
700 - The arts; fine & decorative arts
34
370 - Education
31
332 - Financial economics
30
000 - Computer science, information & general works
29
600 - Technology
28
380 - Commerce, communications & transportation
23
363 - Other social problems & services
22
658 - General management
19
140 - Specific philosophical schools
18
300 - Social sciences
17
900 - History & geography
16
620 - Engineering & allied operations
15
551 - Geology, hydrology & meteorology
14
100 - Philosophy & psychology
12
500 - Natural sciences & mathematics
11
581 - Specific topics in natural history
9
304 - Factors affecting social behavior
8
331 - Labor economics
8
170 - Ethics
7
346 - Private law
7
338 - Production
6
630 - Agriculture & related technologies
6
200 - Religion
5
576 - Genetics & evolution
5
302 - Social interaction
4
361 - Social problems & social welfare in general
4
400 - Language
4
580 - Plants (Botany)
4
670 - Manufacturing
4
001 - Knowledge
3
336 - Public finance
3
297 - Islam, Babism & Bahai Faith
2
350 - Public administration & military science
2
368 - Insurance
2
780 - Music
2
820 - English & Old English literatures
2
158 - Applied psychology
1
301 - Sociology & anthropology
1
306 - Culture & institutions
1
344 - Labor, social, education & cultural law
1
360 - Social problems & services; associations
1
381 - Commerce
1
410 - Linguistics
1
414 - Phonology & phonetics
1
530 - Physics
1
more ...