Classification
600 - Technology
14
700 - The arts; fine & decorative arts
14
333 - Economics of land & energy
12
620 - Engineering & allied operations
12
900 - History & geography
12
380 - Commerce, communications & transportation
10
330 - Economics
5
000 - Computer science, information & general works
4
610 - Medicine & health
4
363 - Other social problems & services
3
630 - Agriculture & related technologies
3
720 - Architecture
3
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
140 - Specific philosophical schools
1
320 - Political science
1
340 - Law
1
370 - Education
1
400 - Language
1
580 - Plants (Botany)
1
658 - General management
1