Classification
140 - Specific philosophical schools
320 - Political science
610 - Medicine & health
700 - The arts; fine & decorative arts
11
330 - Economics
10
363 - Other social problems & services
7
000 - Computer science, information & general works
6
333 - Economics of land & energy
6
304 - Factors affecting social behavior
4
380 - Commerce, communications & transportation
4
580 - Plants (Botany)
4
581 - Specific topics in natural history
4
630 - Agriculture & related technologies
2
900 - History & geography
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
370 - Education
1
410 - Linguistics
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
658 - General management
1
720 - Architecture
1