Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
330 - Economics
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
600 - Technology
3
620 - Engineering & allied operations
3
630 - Agriculture & related technologies
700 - The arts; fine & decorative arts
2
320 - Political science
1
363 - Other social problems & services
1
400 - Language
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
658 - General management
1
900 - History & geography
1