Classification
370 - Education
610 - Medicine & health
120
700 - The arts; fine & decorative arts
33
333 - Economics of land & energy
21
300 - Social sciences
18
380 - Commerce, communications & transportation
17
100 - Philosophy & psychology
16
000 - Computer science, information & general works
14
363 - Other social problems & services
14
600 - Technology
14
900 - History & geography
14
140 - Specific philosophical schools
13
580 - Plants (Botany)
12
330 - Economics
10
170 - Ethics
9
320 - Political science
8
340 - Law
6
200 - Religion
5
301 - Sociology & anthropology
5
400 - Language
5
658 - General management
5
780 - Music
5
551 - Geology, hydrology & meteorology
4
612 - Human physiology
4
615 - Pharmacology & therapeutics
4
620 - Engineering & allied operations
4
581 - Specific topics in natural history
3
304 - Factors affecting social behavior
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
530 - Physics
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
160 - Logic
1
336 - Public finance
1
360 - Social problems & services; associations
1
362 - Social welfare problems & services
1
364 - Criminology
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
616 - Diseases
1
720 - Architecture
1
770 - Photography, photographs & computer art
1