Classification
140 - Specific philosophical schools
363 - Other social problems & services
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
47
000 - Computer science, information & general works
40
333 - Economics of land & energy
37
600 - Technology
36
610 - Medicine & health
36
330 - Economics
33
620 - Engineering & allied operations
30
900 - History & geography
26
551 - Geology, hydrology & meteorology
23
576 - Genetics & evolution
19
320 - Political science
17
580 - Plants (Botany)
16
370 - Education
15
581 - Specific topics in natural history
14
720 - Architecture
14
340 - Law
13
400 - Language
10
500 - Natural sciences & mathematics
10
300 - Social sciences
8
304 - Factors affecting social behavior
8
800 - Literature & rhetoric
8
414 - Phonology & phonetics
7
630 - Agriculture & related technologies
6
658 - General management
6
540 - Chemistry & allied sciences
5
612 - Human physiology
5
170 - Ethics
4
200 - Religion
3
301 - Sociology & anthropology
3
361 - Social problems & social welfare in general
3
410 - Linguistics
3
657 - Accounting
3
100 - Philosophy & psychology
2
530 - Physics
2
780 - Music
2
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
336 - Public finance
1
550 - Earth sciences
1
590 - Animals (Zoology)
1
791 - Public performances
1