Classification
000 - Computer science, information & general works
1
100 - Philosophy & psychology
3
140 - Specific philosophical schools
4
170 - Ethics
1
300 - Social sciences
4
320 - Political science
330 - Economics
4
333 - Economics of land & energy
5
340 - Law
2
363 - Other social problems & services
6
364 - Criminology
1
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
3
600 - Technology
13
620 - Engineering & allied operations
630 - Agriculture & related technologies
8
700 - The arts; fine & decorative arts
3
720 - Architecture
1
900 - History & geography
1