Classification
551 - Geology, hydrology & meteorology
620 - Engineering & allied operations
363 - Other social problems & services
8
370 - Education
8
600 - Technology
7
333 - Economics of land & energy
5
000 - Computer science, information & general works
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
3
900 - History & geography
3
300 - Social sciences
2
380 - Commerce, communications & transportation
2
400 - Language
2
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
2
581 - Specific topics in natural history
2
610 - Medicine & health
2
170 - Ethics
1
320 - Political science
1
330 - Economics
1
530 - Physics
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1