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