Classification
000 - Computer science, information & general works
330 - Economics
658 - General management
338 - Production
192
331 - Labor economics
72
380 - Commerce, communications & transportation
61
302 - Social interaction
53
650 - Management & auxiliary services
53
381 - Commerce
52
153 - Mental processes & intelligence
51
384 - Communications; telecommunication
50
600 - Technology
35
700 - The arts; fine & decorative arts
35
333 - Economics of land & energy
31
300 - Social sciences
30
363 - Other social problems & services
29
670 - Manufacturing
29
620 - Engineering & allied operations
22
332 - Financial economics
19
500 - Natural sciences & mathematics
19
158 - Applied psychology
17
610 - Medicine & health
17
320 - Political science
15
140 - Specific philosophical schools
12
900 - History & geography
10
551 - Geology, hydrology & meteorology
9
576 - Genetics & evolution
9
580 - Plants (Botany)
9
001 - Knowledge
8
630 - Agriculture & related technologies
8
745 - Decorative arts
7
808 - Rhetoric & collections of literature
7
006 - Special computer methods
5
340 - Law
5
370 - Education
5
720 - Architecture
5
400 - Language
4
530 - Physics
4
100 - Philosophy & psychology
3
170 - Ethics
3
361 - Social problems & social welfare in general
3
304 - Factors affecting social behavior
2
339 - Macroeconomics & related topics
2
410 - Linguistics
2
581 - Specific topics in natural history
2
770 - Photography, photographs & computer art
2
011 - Bibliographies
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
336 - Public finance
1
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