Classification
000 - Computer science, information & general works
330 - Economics
363 - Other social problems & services
530 - Physics
333 - Economics of land & energy
7
700 - The arts; fine & decorative arts
5
380 - Commerce, communications & transportation
4
551 - Geology, hydrology & meteorology
2
580 - Plants (Botany)
2
600 - Technology
2
658 - General management
2
140 - Specific philosophical schools
1
340 - Law
1
900 - History & geography
1