Classification
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
610 - Medicine & health
30
330 - Economics
24
320 - Political science
23
333 - Economics of land & energy
18
363 - Other social problems & services
18
900 - History & geography
18
000 - Computer science, information & general works
17
380 - Commerce, communications & transportation
10
200 - Religion
9
340 - Law
9
600 - Technology
9
100 - Philosophy & psychology
7
300 - Social sciences
7
551 - Geology, hydrology & meteorology
7
581 - Specific topics in natural history
7
304 - Factors affecting social behavior
6
370 - Education
6
580 - Plants (Botany)
5
620 - Engineering & allied operations
5
658 - General management
5
800 - Literature & rhetoric
5
400 - Language
4
630 - Agriculture & related technologies
4
170 - Ethics
3
301 - Sociology & anthropology
3
576 - Genetics & evolution
3
780 - Music
3
297 - Islam, Babism & Bahai Faith
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
500 - Natural sciences & mathematics
2
520 - Astronomy & allied sciences
2
612 - Human physiology
2
720 - Architecture
2
338 - Production
1
360 - Social problems & services; associations
1
530 - Physics
1
550 - Earth sciences
1
770 - Photography, photographs & computer art
1
791 - Public performances
1