Classification
000 - Computer science, information & general works
6
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
2
301 - Sociology & anthropology
1
320 - Political science
4
330 - Economics
8
333 - Economics of land & energy
10
363 - Other social problems & services
11
370 - Education
1
380 - Commerce, communications & transportation
1
400 - Language
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
3
530 - Physics
2
540 - Chemistry & allied sciences
551 - Geology, hydrology & meteorology
4
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
2
600 - Technology
610 - Medicine & health
8
612 - Human physiology
1
620 - Engineering & allied operations
21
630 - Agriculture & related technologies
657 - Accounting
1
700 - The arts; fine & decorative arts
11
900 - History & geography
3