Classification
140 - Specific philosophical schools
330 - Economics
610 - Medicine & health
700 - The arts; fine & decorative arts
15
363 - Other social problems & services
11
000 - Computer science, information & general works
10
320 - Political science
10
333 - Economics of land & energy
7
380 - Commerce, communications & transportation
5
580 - Plants (Botany)
5
304 - Factors affecting social behavior
4
551 - Geology, hydrology & meteorology
4
600 - Technology
4
630 - Agriculture & related technologies
4
370 - Education
3
581 - Specific topics in natural history
3
658 - General management
3
360 - Social problems & services; associations
2
900 - History & geography
2
100 - Philosophy & psychology
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
338 - Production
1
340 - Law
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
500 - Natural sciences & mathematics
1
550 - Earth sciences
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
657 - Accounting
1
720 - Architecture
1
780 - Music
1