Classification
330 - Economics
380 - Commerce, communications & transportation
530 - Physics
000 - Computer science, information & general works
10
333 - Economics of land & energy
10
700 - The arts; fine & decorative arts
6
363 - Other social problems & services
5
320 - Political science
3
340 - Law
3
500 - Natural sciences & mathematics
3
600 - Technology
3
658 - General management
3
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
140 - Specific philosophical schools
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
657 - Accounting
1
800 - Literature & rhetoric
1
900 - History & geography
1