Classification
370 - Education
500 - Natural sciences & mathematics
100 - Philosophy & psychology
2
333 - Economics of land & energy
2
400 - Language
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
610 - Medicine & health
1
658 - General management
1
900 - History & geography
1