Classification
361 - Social problems & social welfare in general
197
360 - Social problems & services; associations
127
320 - Political science
76
330 - Economics
72
300 - Social sciences
43
610 - Medicine & health
38
658 - General management
36
340 - Law
31
100 - Philosophy & psychology
17
170 - Ethics
16
370 - Education
16
700 - The arts; fine & decorative arts
13
600 - Technology
12
140 - Specific philosophical schools
11
333 - Economics of land & energy
11
364 - Criminology
11
500 - Natural sciences & mathematics
11
900 - History & geography
11
363 - Other social problems & services
10
000 - Computer science, information & general works
8
200 - Religion
8
304 - Factors affecting social behavior
7
331 - Labor economics
7
380 - Commerce, communications & transportation
6
301 - Sociology & anthropology
5
620 - Engineering & allied operations
5
350 - Public administration & military science
4
551 - Geology, hydrology & meteorology
4
580 - Plants (Botany)
3
362 - Social welfare problems & services
2
410 - Linguistics
2
576 - Genetics & evolution
2
800 - Literature & rhetoric
2
001 - Knowledge
1
005 - Computer programming, programs & data
1
302 - Social interaction
1
306 - Culture & institutions
1
332 - Financial economics
1
336 - Public finance
1
339 - Macroeconomics & related topics
1
540 - Chemistry & allied sciences
1
570 - Life sciences; biology
1
630 - Agriculture & related technologies
1
646 - Sewing, clothing & personal living
1
650 - Management & auxiliary services
1
657 - Accounting
1
670 - Manufacturing
1
780 - Music
1
920 - Biography, genealogy & insignia
1