Classification
600 - Technology
3
610 - Medicine & health
3
140 - Specific philosophical schools
2
320 - Political science
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1