Classification
363 - Other social problems & services
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
900 - History & geography
600 - Technology
48
620 - Engineering & allied operations
44
333 - Economics of land & energy
34
000 - Computer science, information & general works
24
330 - Economics
22
720 - Architecture
17
140 - Specific philosophical schools
16
320 - Political science
13
576 - Genetics & evolution
11
370 - Education
10
610 - Medicine & health
10
551 - Geology, hydrology & meteorology
9
580 - Plants (Botany)
8
340 - Law
7
400 - Language
5
581 - Specific topics in natural history
5
800 - Literature & rhetoric
5
500 - Natural sciences & mathematics
4
658 - General management
4
300 - Social sciences
3
530 - Physics
3
100 - Philosophy & psychology
2
170 - Ethics
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
414 - Phonology & phonetics
1
550 - Earth sciences
1
590 - Animals (Zoology)
1
650 - Management & auxiliary services
1
780 - Music
1
791 - Public performances
1