Classification
320 - Political science
340 - Law
600 - Technology
5
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
900 - History & geography
140 - Specific philosophical schools
4
380 - Commerce, communications & transportation
4
363 - Other social problems & services
3
500 - Natural sciences & mathematics
3
576 - Genetics & evolution
3
720 - Architecture
3
100 - Philosophy & psychology
1
170 - Ethics
1
300 - Social sciences
1
330 - Economics
1
361 - Social problems & social welfare in general
1
370 - Education
1
400 - Language
1
658 - General management
1
780 - Music
1