Classification
340 - Law
320 - Political science
218
330 - Economics
165
900 - History & geography
66
300 - Social sciences
32
700 - The arts; fine & decorative arts
31
140 - Specific philosophical schools
20
610 - Medicine & health
16
800 - Literature & rhetoric
15
304 - Factors affecting social behavior
13
400 - Language
12
100 - Philosophy & psychology
11
200 - Religion
10
370 - Education
10
333 - Economics of land & energy
8
170 - Ethics
7
346 - Private law
7
363 - Other social problems & services
7
630 - Agriculture & related technologies
7
344 - Labor, social, education & cultural law
6
364 - Criminology
6
380 - Commerce, communications & transportation
6
000 - Computer science, information & general works
5
342 - Constitutional & administrative law
5
600 - Technology
5
576 - Genetics & evolution
4
336 - Public finance
3
347 - Civil procedure & courts
3
500 - Natural sciences & mathematics
3
327 - International relations
2
345 - Criminal law
2
350 - Public administration & military science
2
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
581 - Specific topics in natural history
2
830 - Literatures of Germanic languages
2
943 - Central Europe; Germany
2
174 - Occupational ethics
1
220 - Bible
1
230 - Christianity & Christian theology
1
241 - Christian ethics
1
296 - Judaism
1
297 - Islam, Babism & Bahai Faith
1
305 - Social groups
1
338 - Production
1
341 - Law of nations
1
343 - Military, tax, trade & industrial law
1
348 - Laws, regulations & cases
1
351 - Public administration
1
more ...