Classification
370 - Education
610 - Medicine & health
46
363 - Other social problems & services
33
330 - Economics
32
333 - Economics of land & energy
32
600 - Technology
25
000 - Computer science, information & general works
23
700 - The arts; fine & decorative arts
21
630 - Agriculture & related technologies
18
380 - Commerce, communications & transportation
16
320 - Political science
15
140 - Specific philosophical schools
12
304 - Factors affecting social behavior
11
551 - Geology, hydrology & meteorology
10
620 - Engineering & allied operations
10
658 - General management
10
580 - Plants (Botany)
9
900 - History & geography
7
100 - Philosophy & psychology
6
300 - Social sciences
5
576 - Genetics & evolution
5
581 - Specific topics in natural history
5
400 - Language
4
410 - Linguistics
4
170 - Ethics
3
780 - Music
3
301 - Sociology & anthropology
2
336 - Public finance
2
340 - Law
2
361 - Social problems & social welfare in general
2
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
2
800 - Literature & rhetoric
2
200 - Religion
1
360 - Social problems & services; associations
1
414 - Phonology & phonetics
1
530 - Physics
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
657 - Accounting
1
770 - Photography, photographs & computer art
1
920 - Biography, genealogy & insignia
1