Classification
330 - Economics
76
658 - General management
30
333 - Economics of land & energy
29
370 - Education
28
300 - Social sciences
25
320 - Political science
22
700 - The arts; fine & decorative arts
22
380 - Commerce, communications & transportation
19
610 - Medicine & health
16
000 - Computer science, information & general works
14
140 - Specific philosophical schools
13
363 - Other social problems & services
10
600 - Technology
10
331 - Labor economics
9
100 - Philosophy & psychology
7
302 - Social interaction
7
338 - Production
7
340 - Law
7
900 - History & geography
7
620 - Engineering & allied operations
6
630 - Agriculture & related technologies
6
670 - Manufacturing
6
200 - Religion
5
304 - Factors affecting social behavior
5
500 - Natural sciences & mathematics
5
384 - Communications; telecommunication
4
361 - Social problems & social welfare in general
3
400 - Language
3
580 - Plants (Botany)
3
650 - Management & auxiliary services
3
800 - Literature & rhetoric
3
120 - Epistemology, causation & humankind
2
158 - Applied psychology
2
360 - Social problems & services; associations
2
581 - Specific topics in natural history
2
657 - Accounting
2
780 - Music
2
153 - Mental processes & intelligence
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
615 - Pharmacology & therapeutics
1
720 - Architecture
1
770 - Photography, photographs & computer art
1