Classification
340 - Law
900 - History & geography
320 - Political science
819
330 - Economics
640
576 - Genetics & evolution
209
300 - Social sciences
194
100 - Philosophy & psychology
135
700 - The arts; fine & decorative arts
130
200 - Religion
98
600 - Technology
80
620 - Engineering & allied operations
75
400 - Language
62
140 - Specific philosophical schools
61
800 - Literature & rhetoric
58
333 - Economics of land & energy
48
370 - Education
32
410 - Linguistics
32
380 - Commerce, communications & transportation
30
363 - Other social problems & services
28
000 - Computer science, information & general works
27
301 - Sociology & anthropology
26
610 - Medicine & health
24
170 - Ethics
22
297 - Islam, Babism & Bahai Faith
20
500 - Natural sciences & mathematics
17
630 - Agriculture & related technologies
15
304 - Factors affecting social behavior
14
720 - Architecture
14
580 - Plants (Botany)
13
414 - Phonology & phonetics
12
530 - Physics
12
491 - East Indo-European & Celtic languages
8
364 - Criminology
7
296 - Judaism
6
361 - Social problems & social welfare in general
6
551 - Geology, hydrology & meteorology
6
780 - Music
6
791 - Public performances
5
658 - General management
4
120 - Epistemology, causation & humankind
3
160 - Logic
3
230 - Christianity & Christian theology
3
344 - Labor, social, education & cultural law
3
346 - Private law
3
920 - Biography, genealogy & insignia
3
943 - Central Europe; Germany
3
234 - Salvation & grace
2
336 - Public finance
2
347 - Civil procedure & courts
2
360 - Social problems & services; associations
2
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