Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
4
200 - Religion
2
300 - Social sciences
301 - Sociology & anthropology
1
320 - Political science
8
330 - Economics
4
333 - Economics of land & energy
3
350 - Public administration & military science
1
363 - Other social problems & services
7
370 - Education
1
380 - Commerce, communications & transportation
2
500 - Natural sciences & mathematics
2
530 - Physics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
581 - Specific topics in natural history
1
600 - Technology
620 - Engineering & allied operations
5
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
3
900 - History & geography
1