Classification
000 - Computer science, information & general works
6
100 - Philosophy & psychology
1
140 - Specific philosophical schools
2
320 - Political science
1
330 - Economics
333 - Economics of land & energy
13
340 - Law
1
363 - Other social problems & services
9
370 - Education
2
380 - Commerce, communications & transportation
3
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
581 - Specific topics in natural history
1
600 - Technology
10
610 - Medicine & health
7
612 - Human physiology
1
620 - Engineering & allied operations
6
630 - Agriculture & related technologies
7
658 - General management
2
700 - The arts; fine & decorative arts
900 - History & geography
5