Classification
000 - Computer science, information & general works
6
140 - Specific philosophical schools
380 - Commerce, communications & transportation
600 - Technology
6
700 - The arts; fine & decorative arts
6
330 - Economics
5
363 - Other social problems & services
5
320 - Political science
3
370 - Education
3
576 - Genetics & evolution
3
333 - Economics of land & energy
2
620 - Engineering & allied operations
2
720 - Architecture
2
160 - Logic
1
304 - Factors affecting social behavior
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
657 - Accounting
1
658 - General management
1
800 - Literature & rhetoric
1
900 - History & geography
1