Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
330 - Economics
410 - Linguistics
600 - Technology
160 - Logic
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
658 - General management
1
700 - The arts; fine & decorative arts
1