Classification
300 - Social sciences
330 - Economics
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
302 - Social interaction
1
320 - Political science
1
333 - Economics of land & energy
1
370 - Education
1
500 - Natural sciences & mathematics
1
510 - Mathematics
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
658 - General management
1
670 - Manufacturing
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1