Classification
340 - Law
370 - Education
320 - Political science
52
330 - Economics
46
900 - History & geography
32
300 - Social sciences
30
700 - The arts; fine & decorative arts
29
140 - Specific philosophical schools
28
100 - Philosophy & psychology
20
200 - Religion
20
333 - Economics of land & energy
16
380 - Commerce, communications & transportation
14
400 - Language
14
304 - Factors affecting social behavior
13
000 - Computer science, information & general works
12
363 - Other social problems & services
12
600 - Technology
12
610 - Medicine & health
10
170 - Ethics
9
620 - Engineering & allied operations
8
301 - Sociology & anthropology
7
410 - Linguistics
7
297 - Islam, Babism & Bahai Faith
6
500 - Natural sciences & mathematics
4
551 - Geology, hydrology & meteorology
4
414 - Phonology & phonetics
3
120 - Epistemology, causation & humankind
2
364 - Criminology
2
530 - Physics
2
576 - Genetics & evolution
2
658 - General management
2
720 - Architecture
2
780 - Music
2
800 - Literature & rhetoric
2
231 - God
1
344 - Labor, social, education & cultural law
1
361 - Social problems & social welfare in general
1
520 - Astronomy & allied sciences
1
580 - Plants (Botany)
1
616 - Diseases
1
657 - Accounting
1
770 - Photography, photographs & computer art
1