Classification
000 - Computer science, information & general works
976
001 - Knowledge
2
100 - Philosophy & psychology
226
120 - Epistemology, causation & humankind
13
140 - Specific philosophical schools
446
153 - Mental processes & intelligence
1
158 - Applied psychology
4
160 - Logic
4
170 - Ethics
68
200 - Religion
41
296 - Judaism
2
297 - Islam, Babism & Bahai Faith
18
300 - Social sciences
166
301 - Sociology & anthropology
41
302 - Social interaction
8
303 - Social processes
3
304 - Factors affecting social behavior
427
320 - Political science
1,889
330 - Economics
1,985
331 - Labor economics
4
332 - Financial economics
9
333 - Economics of land & energy
336 - Public finance
91
338 - Production
225
340 - Law
177
350 - Public administration & military science
21
360 - Social problems & services; associations
4
361 - Social problems & social welfare in general
44
362 - Social welfare problems & services
3
363 - Other social problems & services
1,382
364 - Criminology
4
368 - Insurance
1
370 - Education
479
371 - Schools & their activities; special education
1
380 - Commerce, communications & transportation
718
381 - Commerce
6
398 - Folklore
2
400 - Language
98
410 - Linguistics
40
414 - Phonology & phonetics
108
500 - Natural sciences & mathematics
296
510 - Mathematics
3
520 - Astronomy & allied sciences
17
530 - Physics
370
540 - Chemistry & allied sciences
228
550 - Earth sciences
10
551 - Geology, hydrology & meteorology
290
576 - Genetics & evolution
274
580 - Plants (Botany)
397
581 - Specific topics in natural history
180
more ...