Classification
000 - Computer science, information & general works
2
330 - Economics
2
380 - Commerce, communications & transportation
610 - Medicine & health
658 - General management
140 - Specific philosophical schools
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
500 - Natural sciences & mathematics
1
600 - Technology
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1