Classification
140 - Specific philosophical schools
370 - Education
153
700 - The arts; fine & decorative arts
52
333 - Economics of land & energy
51
610 - Medicine & health
49
330 - Economics
40
600 - Technology
39
000 - Computer science, information & general works
37
363 - Other social problems & services
37
900 - History & geography
35
100 - Philosophy & psychology
31
320 - Political science
31
300 - Social sciences
28
380 - Commerce, communications & transportation
27
340 - Law
22
400 - Language
18
620 - Engineering & allied operations
17
200 - Religion
14
301 - Sociology & anthropology
14
170 - Ethics
12
551 - Geology, hydrology & meteorology
12
576 - Genetics & evolution
12
410 - Linguistics
10
658 - General management
9
800 - Literature & rhetoric
9
304 - Factors affecting social behavior
8
297 - Islam, Babism & Bahai Faith
6
500 - Natural sciences & mathematics
6
720 - Architecture
6
530 - Physics
5
580 - Plants (Botany)
4
581 - Specific topics in natural history
4
630 - Agriculture & related technologies
3
780 - Music
3
120 - Epistemology, causation & humankind
2
360 - Social problems & services; associations
2
364 - Criminology
2
414 - Phonology & phonetics
2
770 - Photography, photographs & computer art
2
160 - Logic
1
350 - Public administration & military science
1
361 - Social problems & social welfare in general
1
657 - Accounting
1