Classification
000 - Computer science, information & general works
330 - Economics
380 - Commerce, communications & transportation
530 - Physics
333 - Economics of land & energy
9
700 - The arts; fine & decorative arts
5
363 - Other social problems & services
4
320 - Political science
3
340 - Law
3
500 - Natural sciences & mathematics
3
658 - General management
3
580 - Plants (Botany)
2
600 - Technology
2
140 - Specific philosophical schools
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
657 - Accounting
1
800 - Literature & rhetoric
1