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