Classification
330 - Economics
4
333 - Economics of land & energy
363 - Other social problems & services
4
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
2
320 - Political science
2
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
600 - Technology
2
658 - General management
2
000 - Computer science, information & general works
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
370 - Education
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
657 - Accounting
1