Classification
000 - Computer science, information & general works
42
001 - Knowledge
9
004 - Data processing & computer science
4
005 - Computer programming, programs & data
33
006 - Special computer methods
1
025 - Library operations
1
100 - Philosophy & psychology
5
140 - Specific philosophical schools
17
153 - Mental processes & intelligence
1
170 - Ethics
2
192 - Philosophy of British Isles
1
200 - Religion
2
300 - Social sciences
14
301 - Sociology & anthropology
6
302 - Social interaction
4
304 - Factors affecting social behavior
4
320 - Political science
37
330 - Economics
85
331 - Labor economics
57
332 - Financial economics
1
333 - Economics of land & energy
23
338 - Production
12
340 - Law
26
341 - Law of nations
1
342 - Constitutional & administrative law
1
345 - Criminal law
6
350 - Public administration & military science
2
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
2
362 - Social welfare problems & services
1
363 - Other social problems & services
102
364 - Criminology
133
370 - Education
5
374 - Adult education
1
380 - Commerce, communications & transportation
7
381 - Commerce
1
384 - Communications; telecommunication
7
398 - Folklore
1
400 - Language
1
410 - Linguistics
3
414 - Phonology & phonetics
3
500 - Natural sciences & mathematics
97
510 - Mathematics
2
519 - Probabilities & applied mathematics
3
520 - Astronomy & allied sciences
1
530 - Physics
6
540 - Chemistry & allied sciences
7
551 - Geology, hydrology & meteorology
6
570 - Life sciences; biology
6
576 - Genetics & evolution
9
more ...