Classification
320 - Political science
363 - Other social problems & services
610 - Medicine & health
630 - Agriculture & related technologies
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
170 - Ethics
1
300 - Social sciences
1
330 - Economics
1
600 - Technology
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1