Classification
301 - Sociology & anthropology
300 - Social sciences
852
900 - History & geography
486
320 - Political science
292
200 - Religion
244
700 - The arts; fine & decorative arts
219
100 - Philosophy & psychology
203
140 - Specific philosophical schools
169
330 - Economics
126
610 - Medicine & health
116
304 - Factors affecting social behavior
107
780 - Music
88
340 - Law
80
363 - Other social problems & services
80
370 - Education
77
600 - Technology
75
400 - Language
69
800 - Literature & rhetoric
60
333 - Economics of land & energy
55
000 - Computer science, information & general works
54
380 - Commerce, communications & transportation
52
170 - Ethics
48
410 - Linguistics
41
297 - Islam, Babism & Bahai Faith
40
576 - Genetics & evolution
34
630 - Agriculture & related technologies
31
398 - Folklore
29
720 - Architecture
28
581 - Specific topics in natural history
26
160 - Logic
25
620 - Engineering & allied operations
23
361 - Social problems & social welfare in general
22
500 - Natural sciences & mathematics
20
350 - Public administration & military science
17
530 - Physics
16
364 - Criminology
15
120 - Epistemology, causation & humankind
9
360 - Social problems & services; associations
8
233 - Humankind
7
540 - Chemistry & allied sciences
7
551 - Geology, hydrology & meteorology
6
658 - General management
6
590 - Animals (Zoology)
5
770 - Photography, photographs & computer art
5
791 - Public performances
5
230 - Christianity & Christian theology
4
296 - Judaism
3
414 - Phonology & phonetics
3
520 - Astronomy & allied sciences
3
580 - Plants (Botany)
3
more ...