Classification
000 - Computer science, information & general works
1
140 - Specific philosophical schools
170 - Ethics
2
300 - Social sciences
2
320 - Political science
3
330 - Economics
1
333 - Economics of land & energy
2
340 - Law
5
363 - Other social problems & services
380 - Commerce, communications & transportation
500 - Natural sciences & mathematics
3
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
580 - Plants (Botany)
2
581 - Specific topics in natural history
1
600 - Technology
610 - Medicine & health
2
620 - Engineering & allied operations
7
630 - Agriculture & related technologies
2
658 - General management
1
700 - The arts; fine & decorative arts
720 - Architecture
6
800 - Literature & rhetoric
2
900 - History & geography