Classification
320 - Political science
363 - Other social problems & services
600 - Technology
610 - Medicine & health
330 - Economics
19
333 - Economics of land & energy
18
700 - The arts; fine & decorative arts
16
370 - Education
13
551 - Geology, hydrology & meteorology
10
000 - Computer science, information & general works
9
304 - Factors affecting social behavior
8
620 - Engineering & allied operations
7
630 - Agriculture & related technologies
7
900 - History & geography
7
380 - Commerce, communications & transportation
6
140 - Specific philosophical schools
5
340 - Law
5
581 - Specific topics in natural history
5
100 - Philosophy & psychology
4
300 - Social sciences
4
576 - Genetics & evolution
2
658 - General management
2
720 - Architecture
2
170 - Ethics
1
200 - Religion
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
414 - Phonology & phonetics
1
580 - Plants (Botany)
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1