Classification
700 - The arts; fine & decorative arts
333 - Economics of land & energy
32
000 - Computer science, information & general works
29
330 - Economics
25
320 - Political science
23
600 - Technology
20
370 - Education
18
500 - Natural sciences & mathematics
17
610 - Medicine & health
16
340 - Law
14
380 - Commerce, communications & transportation
14
300 - Social sciences
13
900 - History & geography
13
363 - Other social problems & services
12
140 - Specific philosophical schools
11
304 - Factors affecting social behavior
10
576 - Genetics & evolution
9
620 - Engineering & allied operations
7
361 - Social problems & social welfare in general
6
100 - Philosophy & psychology
5
170 - Ethics
5
301 - Sociology & anthropology
4
530 - Physics
4
551 - Geology, hydrology & meteorology
3
580 - Plants (Botany)
3
630 - Agriculture & related technologies
3
780 - Music
3
200 - Religion
2
350 - Public administration & military science
2
400 - Language
2
410 - Linguistics
2
658 - General management
2
720 - Architecture
2
336 - Public finance
1
360 - Social problems & services; associations
1
364 - Criminology
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
581 - Specific topics in natural history
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1