Classification
000 - Computer science, information & general works
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
5
200 - Religion
2
300 - Social sciences
301 - Sociology & anthropology
4
304 - Factors affecting social behavior
2
320 - Political science
12
330 - Economics
333 - Economics of land & energy
14
340 - Law
2
350 - Public administration & military science
2
363 - Other social problems & services
370 - Education
4
380 - Commerce, communications & transportation
5
400 - Language
2
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
4
576 - Genetics & evolution
2
581 - Specific topics in natural history
3
600 - Technology
610 - Medicine & health
7
620 - Engineering & allied operations
8
630 - Agriculture & related technologies
4
650 - Management & auxiliary services
1
657 - Accounting
1
658 - General management
1
700 - The arts; fine & decorative arts
7
900 - History & geography
5