Classification
000 - Computer science, information & general works
5
100 - Philosophy & psychology
140 - Specific philosophical schools
8
170 - Ethics
4
200 - Religion
2
300 - Social sciences
5
301 - Sociology & anthropology
1
320 - Political science
5
330 - Economics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
4
380 - Commerce, communications & transportation
2
400 - Language
1
551 - Geology, hydrology & meteorology
2
581 - Specific topics in natural history
2
600 - Technology
610 - Medicine & health
1
620 - Engineering & allied operations
6
630 - Agriculture & related technologies
4
700 - The arts; fine & decorative arts
3
720 - Architecture
1
791 - Public performances
1
900 - History & geography
4