Classification
330 - Economics
400 - Language
320 - Political science
66
700 - The arts; fine & decorative arts
28
600 - Technology
23
333 - Economics of land & energy
21
900 - History & geography
21
000 - Computer science, information & general works
19
380 - Commerce, communications & transportation
19
370 - Education
17
170 - Ethics
15
620 - Engineering & allied operations
14
140 - Specific philosophical schools
13
363 - Other social problems & services
13
300 - Social sciences
11
340 - Law
9
410 - Linguistics
9
100 - Philosophy & psychology
8
658 - General management
7
576 - Genetics & evolution
6
500 - Natural sciences & mathematics
5
610 - Medicine & health
5
304 - Factors affecting social behavior
4
580 - Plants (Botany)
4
780 - Music
4
200 - Religion
3
297 - Islam, Babism & Bahai Faith
3
301 - Sociology & anthropology
3
800 - Literature & rhetoric
3
551 - Geology, hydrology & meteorology
2
630 - Agriculture & related technologies
2
720 - Architecture
2
160 - Logic
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
770 - Photography, photographs & computer art
1
791 - Public performances
1