Classification
320 - Political science
330 - Economics
600 - Technology
4
620 - Engineering & allied operations
658 - General management
700 - The arts; fine & decorative arts
4
900 - History & geography
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
370 - Education
2
380 - Commerce, communications & transportation
2
580 - Plants (Botany)
2
720 - Architecture
2
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
300 - Social sciences
1
340 - Law
1
400 - Language
1
780 - Music
1