Classification
140 - Specific philosophical schools
380 - Commerce, communications & transportation
610 - Medicine & health
000 - Computer science, information & general works
6
700 - The arts; fine & decorative arts
6
330 - Economics
5
363 - Other social problems & services
5
320 - Political science
4
304 - Factors affecting social behavior
3
333 - Economics of land & energy
3
551 - Geology, hydrology & meteorology
3
600 - Technology
3
620 - Engineering & allied operations
3
658 - General management
3
576 - Genetics & evolution
2
900 - History & geography
2
100 - Philosophy & psychology
1
170 - Ethics
1
361 - Social problems & social welfare in general
1
370 - Education
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
550 - Earth sciences
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
630 - Agriculture & related technologies
1
657 - Accounting
1
720 - Architecture
1