Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
1
140 - Specific philosophical schools
3
300 - Social sciences
1
320 - Political science
330 - Economics
5
333 - Economics of land & energy
3
340 - Law
2
363 - Other social problems & services
9
380 - Commerce, communications & transportation
2
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
1
581 - Specific topics in natural history
2
600 - Technology
4
610 - Medicine & health
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
3
658 - General management
1
700 - The arts; fine & decorative arts
6
720 - Architecture
1
900 - History & geography
1