Classification
340 - Law
380 - Commerce, communications & transportation
576 - Genetics & evolution
5
320 - Political science
4
363 - Other social problems & services
4
600 - Technology
4
700 - The arts; fine & decorative arts
4
720 - Architecture
4
140 - Specific philosophical schools
3
500 - Natural sciences & mathematics
3
620 - Engineering & allied operations
3
900 - History & geography
3
330 - Economics
2
333 - Economics of land & energy
2
000 - Computer science, information & general works
1
630 - Agriculture & related technologies
1