Classification
140 - Specific philosophical schools
600 - Technology
720 - Architecture
363 - Other social problems & services
9
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
9
900 - History & geography
8
380 - Commerce, communications & transportation
7
320 - Political science
6
333 - Economics of land & energy
5
340 - Law
5
576 - Genetics & evolution
5
500 - Natural sciences & mathematics
3
580 - Plants (Botany)
3
000 - Computer science, information & general works
2
170 - Ethics
2
300 - Social sciences
2
330 - Economics
2
551 - Geology, hydrology & meteorology
2
610 - Medicine & health
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
370 - Education
1
658 - General management
1