Classification
333 - Economics of land & energy
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
330 - Economics
7
000 - Computer science, information & general works
6
363 - Other social problems & services
6
551 - Geology, hydrology & meteorology
5
320 - Political science
4
610 - Medicine & health
4
140 - Specific philosophical schools
3
900 - History & geography
3
380 - Commerce, communications & transportation
2
600 - Technology
2
620 - Engineering & allied operations
2
658 - General management
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
361 - Social problems & social welfare in general
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
657 - Accounting
1