Classification
700 - The arts; fine & decorative arts
320 - Political science
8
330 - Economics
8
363 - Other social problems & services
4
000 - Computer science, information & general works
3
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
600 - Technology
3
610 - Medicine & health
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
900 - History & geography
2
140 - Specific philosophical schools
1
170 - Ethics
1
340 - Law
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
370 - Education
1
414 - Phonology & phonetics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
657 - Accounting
1
720 - Architecture
1
800 - Literature & rhetoric
1