Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
330 - Economics
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
610 - Medicine & health
657 - Accounting
2
100 - Philosophy & psychology
1
170 - Ethics
1
320 - Political science
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
650 - Management & auxiliary services
1
658 - General management
1