Classification
610 - Medicine & health
600 - Technology
14
000 - Computer science, information & general works
12
370 - Education
12
306 - Culture & institutions
11
333 - Economics of land & energy
11
700 - The arts; fine & decorative arts
10
900 - History & geography
10
540 - Chemistry & allied sciences
9
140 - Specific philosophical schools
8
300 - Social sciences
7
330 - Economics
7
100 - Philosophy & psychology
6
500 - Natural sciences & mathematics
6
620 - Engineering & allied operations
6
363 - Other social problems & services
5
380 - Commerce, communications & transportation
4
580 - Plants (Botany)
4
170 - Ethics
3
304 - Factors affecting social behavior
3
320 - Political science
3
340 - Law
3
360 - Social problems & services; associations
3
361 - Social problems & social welfare in general
3
400 - Language
3
720 - Architecture
3
301 - Sociology & anthropology
2
410 - Linguistics
2
530 - Physics
2
576 - Genetics & evolution
2
615 - Pharmacology & therapeutics
2
657 - Accounting
2
001 - Knowledge
1
174 - Occupational ethics
1
658 - General management
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1