Classification
700 - The arts; fine & decorative arts
32
333 - Economics of land & energy
31
900 - History & geography
27
600 - Technology
25
363 - Other social problems & services
22
000 - Computer science, information & general works
21
320 - Political science
19
620 - Engineering & allied operations
19
330 - Economics
18
610 - Medicine & health
14
380 - Commerce, communications & transportation
13
370 - Education
12
551 - Geology, hydrology & meteorology
11
140 - Specific philosophical schools
9
301 - Sociology & anthropology
8
340 - Law
7
300 - Social sciences
6
500 - Natural sciences & mathematics
6
576 - Genetics & evolution
6
580 - Plants (Botany)
6
200 - Religion
5
630 - Agriculture & related technologies
5
720 - Architecture
5
100 - Philosophy & psychology
4
304 - Factors affecting social behavior
4
400 - Language
4
170 - Ethics
3
530 - Physics
3
658 - General management
3
800 - Literature & rhetoric
3
410 - Linguistics
2
414 - Phonology & phonetics
2
540 - Chemistry & allied sciences
2
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
581 - Specific topics in natural history
1
657 - Accounting
1
780 - Music
1
791 - Public performances
1