Classification
000 - Computer science, information & general works
87
001 - Knowledge
1
005 - Computer programming, programs & data
1
100 - Philosophy & psychology
12
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
30
170 - Ethics
18
174 - Occupational ethics
1
200 - Religion
6
297 - Islam, Babism & Bahai Faith
2
300 - Social sciences
25
301 - Sociology & anthropology
5
304 - Factors affecting social behavior
24
305 - Social groups
1
320 - Political science
95
327 - International relations
1
330 - Economics
202
331 - Labor economics
1
333 - Economics of land & energy
121
336 - Public finance
1
338 - Production
2
340 - Law
22
346 - Private law
1
350 - Public administration & military science
2
353 - Specific fields of public administration
1
360 - Social problems & services; associations
3
361 - Social problems & social welfare in general
5
362 - Social welfare problems & services
2
363 - Other social problems & services
103
364 - Criminology
1
370 - Education
65
380 - Commerce, communications & transportation
44
398 - Folklore
1
400 - Language
5
410 - Linguistics
3
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
32
507 - Education, research & related topics
1
520 - Astronomy & allied sciences
1
530 - Physics
2
539 - Modern physics
1
540 - Chemistry & allied sciences
10
542 - Techniques, equipment & materials
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
27
576 - Genetics & evolution
13
580 - Plants (Botany)
26
581 - Specific topics in natural history
21
590 - Animals (Zoology)
1
600 - Technology
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