Classification
410 - Linguistics
800 - Literature & rhetoric
900 - History & geography
131
400 - Language
86
140 - Specific philosophical schools
40
700 - The arts; fine & decorative arts
39
100 - Philosophy & psychology
21
200 - Religion
19
300 - Social sciences
15
320 - Political science
15
370 - Education
13
301 - Sociology & anthropology
12
340 - Law
11
380 - Commerce, communications & transportation
11
000 - Computer science, information & general works
10
333 - Economics of land & energy
10
170 - Ethics
9
330 - Economics
9
363 - Other social problems & services
8
398 - Folklore
7
600 - Technology
7
780 - Music
5
576 - Genetics & evolution
4
297 - Islam, Babism & Bahai Faith
3
304 - Factors affecting social behavior
3
414 - Phonology & phonetics
3
500 - Natural sciences & mathematics
3
581 - Specific topics in natural history
3
610 - Medicine & health
3
120 - Epistemology, causation & humankind
2
580 - Plants (Botany)
2
520 - Astronomy & allied sciences
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
658 - General management
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
880 - Hellenic literatures; classical Greek
1