Classification
000 - Computer science, information & general works
6
100 - Philosophy & psychology
1
140 - Specific philosophical schools
2
300 - Social sciences
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
2
330 - Economics
5
333 - Economics of land & energy
5
363 - Other social problems & services
5
370 - Education
2
380 - Commerce, communications & transportation
3
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
3
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
3
576 - Genetics & evolution
581 - Specific topics in natural history
600 - Technology
6
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
2
657 - Accounting
1
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
1
900 - History & geography
1