Classification
000 - Computer science, information & general works
330 - Economics
361 - Social problems & social welfare in general
610 - Medicine & health
2
658 - General management
140 - Specific philosophical schools
1
320 - Political science
1
333 - Economics of land & energy
1
500 - Natural sciences & mathematics
1
600 - Technology
1
650 - Management & auxiliary services
1
700 - The arts; fine & decorative arts
1