Classification
300 - Social sciences
320 - Political science
19
900 - History & geography
17
100 - Philosophy & psychology
14
140 - Specific philosophical schools
13
330 - Economics
12
333 - Economics of land & energy
12
301 - Sociology & anthropology
11
658 - General management
11
610 - Medicine & health
9
302 - Social interaction
8
338 - Production
6
200 - Religion
5
340 - Law
5
364 - Criminology
3
370 - Education
3
380 - Commerce, communications & transportation
3
170 - Ethics
2
304 - Factors affecting social behavior
2
381 - Commerce
2
500 - Natural sciences & mathematics
2
600 - Technology
2
800 - Literature & rhetoric
2
001 - Knowledge
1
004 - Data processing & computer science
1
120 - Epistemology, causation & humankind
1
153 - Mental processes & intelligence
1
296 - Judaism
1
306 - Culture & institutions
1
331 - Labor economics
1
332 - Financial economics
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
384 - Communications; telecommunication
1
581 - Specific topics in natural history
1
670 - Manufacturing
1
700 - The arts; fine & decorative arts
1