Classification
320 - Political science
8
336 - Public finance
330 - Economics
7
300 - Social sciences
3
333 - Economics of land & energy
3
350 - Public administration & military science
2
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
340 - Law
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
600 - Technology
1
610 - Medicine & health
1
657 - Accounting
1
658 - General management
1
800 - Literature & rhetoric
1
900 - History & geography
1