Classification
000 - Computer science, information & general works
3
140 - Specific philosophical schools
3
320 - Political science
330 - Economics
333 - Economics of land & energy
5
363 - Other social problems & services
370 - Education
5
380 - Commerce, communications & transportation
5
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
1
600 - Technology
4
610 - Medicine & health
4
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
720 - Architecture
900 - History & geography
4