Classification
000 - Computer science, information & general works
170 - Ethics
700 - The arts; fine & decorative arts
600 - Technology
10
320 - Political science
8
140 - Specific philosophical schools
6
100 - Philosophy & psychology
5
300 - Social sciences
5
333 - Economics of land & energy
4
581 - Specific topics in natural history
4
610 - Medicine & health
4
620 - Engineering & allied operations
4
330 - Economics
3
370 - Education
3
380 - Commerce, communications & transportation
3
900 - History & geography
3
200 - Religion
2
340 - Law
2
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
630 - Agriculture & related technologies
2
120 - Epistemology, causation & humankind
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
414 - Phonology & phonetics
1
530 - Physics
1
576 - Genetics & evolution
1
720 - Architecture
1
800 - Literature & rhetoric
1