Classification
000 - Computer science, information & general works
330 - Economics
361 - Social problems & social welfare in general
333 - Economics of land & energy
6
610 - Medicine & health
6
363 - Other social problems & services
5
700 - The arts; fine & decorative arts
5
320 - Political science
4
380 - Commerce, communications & transportation
4
140 - Specific philosophical schools
3
600 - Technology
3
658 - General management
3
370 - Education
2
500 - Natural sciences & mathematics
2
630 - Agriculture & related technologies
2
170 - Ethics
1
200 - Religion
1
304 - Factors affecting social behavior
1
340 - Law
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
612 - Human physiology
1
620 - Engineering & allied operations
1
650 - Management & auxiliary services
1