Classification
000 - Computer science, information & general works
40
001 - Knowledge
2
011 - Bibliographies
2
100 - Philosophy & psychology
39
140 - Specific philosophical schools
41
153 - Mental processes & intelligence
1
160 - Logic
1
170 - Ethics
29
174 - Occupational ethics
1
200 - Religion
14
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
91
301 - Sociology & anthropology
16
302 - Social interaction
1
303 - Social processes
2
304 - Factors affecting social behavior
30
306 - Culture & institutions
1
320 - Political science
167
330 - Economics
185
331 - Labor economics
5
332 - Financial economics
4
333 - Economics of land & energy
44
336 - Public finance
5
338 - Production
4
340 - Law
41
350 - Public administration & military science
8
360 - Social problems & services; associations
108
361 - Social problems & social welfare in general
362 - Social welfare problems & services
12
363 - Other social problems & services
32
364 - Criminology
17
370 - Education
26
371 - Schools & their activities; special education
1
372 - Elementary education
2
380 - Commerce, communications & transportation
21
400 - Language
2
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
20
519 - Probabilities & applied mathematics
1
540 - Chemistry & allied sciences
2
551 - Geology, hydrology & meteorology
8
576 - Genetics & evolution
7
580 - Plants (Botany)
9
581 - Specific topics in natural history
3
590 - Animals (Zoology)
5
600 - Technology
29
610 - Medicine & health
134
612 - Human physiology
8
615 - Pharmacology & therapeutics
2
616 - Diseases
1
more ...