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