Classification
340 - Law
320 - Political science
5,062
330 - Economics
4,934
900 - History & geography
463
300 - Social sciences
364
700 - The arts; fine & decorative arts
316
140 - Specific philosophical schools
175
333 - Economics of land & energy
162
600 - Technology
158
000 - Computer science, information & general works
127
610 - Medicine & health
127
100 - Philosophy & psychology
124
630 - Agriculture & related technologies
120
380 - Commerce, communications & transportation
118
363 - Other social problems & services
116
620 - Engineering & allied operations
105
170 - Ethics
91
200 - Religion
75
370 - Education
68
576 - Genetics & evolution
53
500 - Natural sciences & mathematics
52
800 - Literature & rhetoric
47
301 - Sociology & anthropology
43
400 - Language
42
304 - Factors affecting social behavior
35
530 - Physics
33
580 - Plants (Botany)
33
551 - Geology, hydrology & meteorology
31
364 - Criminology
26
297 - Islam, Babism & Bahai Faith
21
410 - Linguistics
20
581 - Specific topics in natural history
18
720 - Architecture
18
361 - Social problems & social welfare in general
17
658 - General management
17
414 - Phonology & phonetics
14
350 - Public administration & military science
11
120 - Epistemology, causation & humankind
9
540 - Chemistry & allied sciences
8
780 - Music
7
491 - East Indo-European & Celtic languages
6
360 - Social problems & services; associations
5
791 - Public performances
5
296 - Judaism
4
338 - Production
3
341 - Law of nations
3
398 - Folklore
3
770 - Photography, photographs & computer art
3
920 - Biography, genealogy & insignia
3
160 - Logic
2
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