Classification
000 - Computer science, information & general works
333 - Economics of land & energy
11
600 - Technology
658 - General management
330 - Economics
9
700 - The arts; fine & decorative arts
8
363 - Other social problems & services
6
610 - Medicine & health
5
620 - Engineering & allied operations
5
580 - Plants (Botany)
4
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
3
630 - Agriculture & related technologies
3
370 - Education
2
551 - Geology, hydrology & meteorology
2
140 - Specific philosophical schools
1
300 - Social sciences
1
320 - Political science
1
336 - Public finance
1
340 - Law
1
364 - Criminology
1
400 - Language
1
900 - History & geography
1