Classification
000 - Computer science, information & general works
363 - Other social problems & services
576 - Genetics & evolution
600 - Technology
700 - The arts; fine & decorative arts
333 - Economics of land & energy
5
380 - Commerce, communications & transportation
5
610 - Medicine & health
5
330 - Economics
4
620 - Engineering & allied operations
4
900 - History & geography
3
140 - Specific philosophical schools
2
340 - Law
2
530 - Physics
2
658 - General management
2
720 - Architecture
2
300 - Social sciences
1
320 - Political science
1
370 - Education
1
414 - Phonology & phonetics
1
540 - Chemistry & allied sciences
1
650 - Management & auxiliary services
1
657 - Accounting
1
800 - Literature & rhetoric
1