Classification
000 - Computer science, information & general works
2
330 - Economics
363 - Other social problems & services
2
720 - Architecture
140 - Specific philosophical schools
1
320 - Political science
1
380 - Commerce, communications & transportation
1
550 - Earth sciences
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1