Classification
370 - Education
380 - Commerce, communications & transportation
4
630 - Agriculture & related technologies
333 - Economics of land & energy
3
363 - Other social problems & services
3
320 - Political science
2
330 - Economics
2
551 - Geology, hydrology & meteorology
2
600 - Technology
2
140 - Specific philosophical schools
1
300 - Social sciences
1
336 - Public finance
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
1