Classification
330 - Economics
53
300 - Social sciences
35
900 - History & geography
26
700 - The arts; fine & decorative arts
18
370 - Education
15
340 - Law
13
600 - Technology
13
140 - Specific philosophical schools
12
100 - Philosophy & psychology
10
320 - Political science
10
658 - General management
10
302 - Social interaction
9
500 - Natural sciences & mathematics
9
331 - Labor economics
8
380 - Commerce, communications & transportation
6
006 - Special computer methods
5
381 - Commerce
5
800 - Literature & rhetoric
5
200 - Religion
4
301 - Sociology & anthropology
4
620 - Engineering & allied operations
4
304 - Factors affecting social behavior
3
338 - Production
3
363 - Other social problems & services
3
400 - Language
3
410 - Linguistics
3
780 - Music
3
000 - Computer science, information & general works
2
005 - Computer programming, programs & data
2
120 - Epistemology, causation & humankind
2
170 - Ethics
2
303 - Social processes
2
333 - Economics of land & energy
2
610 - Medicine & health
2
004 - Data processing & computer science
1
070 - News media, journalism & publishing
1
079 - Newspapers in other geographic areas
1
160 - Logic
1
307 - Communities
1
332 - Financial economics
1
384 - Communications; telecommunication
1
547 - Organic chemistry
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
621 - Applied physics
1
650 - Management & auxiliary services
1
670 - Manufacturing
1
720 - Architecture
1
745 - Decorative arts
1
770 - Photography, photographs & computer art
1