Classification
000 - Computer science, information & general works
351
001 - Knowledge
4
004 - Data processing & computer science
1
005 - Computer programming, programs & data
4
006 - Special computer methods
2
100 - Philosophy & psychology
9
120 - Epistemology, causation & humankind
2
140 - Specific philosophical schools
71
150 - Psychology
1
153 - Mental processes & intelligence
11
158 - Applied psychology
4
160 - Logic
1
170 - Ethics
7
200 - Religion
3
297 - Islam, Babism & Bahai Faith
3
300 - Social sciences
45
302 - Social interaction
15
304 - Factors affecting social behavior
17
307 - Communities
1
320 - Political science
72
330 - Economics
618
331 - Labor economics
12
332 - Financial economics
2
333 - Economics of land & energy
515
336 - Public finance
2
338 - Production
64
339 - Macroeconomics & related topics
1
340 - Law
51
344 - Labor, social, education & cultural law
1
350 - Public administration & military science
5
360 - Social problems & services; associations
2
361 - Social problems & social welfare in general
10
362 - Social welfare problems & services
11
363 - Other social problems & services
224
370 - Education
40
380 - Commerce, communications & transportation
174
381 - Commerce
4
384 - Communications; telecommunication
2
400 - Language
12
410 - Linguistics
9
414 - Phonology & phonetics
34
500 - Natural sciences & mathematics
84
519 - Probabilities & applied mathematics
2
530 - Physics
45
540 - Chemistry & allied sciences
45
550 - Earth sciences
2
551 - Geology, hydrology & meteorology
91
576 - Genetics & evolution
59
577 - Ecology
2
580 - Plants (Botany)
161
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