Classification
000 - Computer science, information & general works
2
140 - Specific philosophical schools
4
320 - Political science
330 - Economics
4
333 - Economics of land & energy
5
340 - Law
3
363 - Other social problems & services
370 - Education
3
380 - Commerce, communications & transportation
500 - Natural sciences & mathematics
3
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
3
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
600 - Technology
610 - Medicine & health
2
620 - Engineering & allied operations
7
658 - General management
1
700 - The arts; fine & decorative arts
720 - Architecture
6
900 - History & geography