Classification
000 - Computer science, information & general works
3
100 - Philosophy & psychology
1
170 - Ethics
300 - Social sciences
2
320 - Political science
330 - Economics
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
600 - Technology
610 - Medicine & health
1
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
1
700 - The arts; fine & decorative arts
2
900 - History & geography
1