Classification
300 - Social sciences
700 - The arts; fine & decorative arts
900 - History & geography
119
320 - Political science
117
100 - Philosophy & psychology
60
301 - Sociology & anthropology
60
363 - Other social problems & services
59
600 - Technology
59
140 - Specific philosophical schools
56
000 - Computer science, information & general works
47
370 - Education
47
330 - Economics
43
380 - Commerce, communications & transportation
32
333 - Economics of land & energy
31
200 - Religion
27
400 - Language
26
610 - Medicine & health
26
800 - Literature & rhetoric
26
620 - Engineering & allied operations
24
720 - Architecture
23
340 - Law
22
780 - Music
22
304 - Factors affecting social behavior
17
410 - Linguistics
17
170 - Ethics
15
630 - Agriculture & related technologies
15
551 - Geology, hydrology & meteorology
12
500 - Natural sciences & mathematics
11
576 - Genetics & evolution
10
770 - Photography, photographs & computer art
10
580 - Plants (Botany)
9
120 - Epistemology, causation & humankind
8
791 - Public performances
7
297 - Islam, Babism & Bahai Faith
6
361 - Social problems & social welfare in general
6
530 - Physics
6
581 - Specific topics in natural history
6
540 - Chemistry & allied sciences
5
658 - General management
5
360 - Social problems & services; associations
4
414 - Phonology & phonetics
4
364 - Criminology
3
612 - Human physiology
3
160 - Logic
2
296 - Judaism
1
338 - Production
1
350 - Public administration & military science
1
650 - Management & auxiliary services
1
657 - Accounting
1