Classification
170 - Ethics
330 - Economics
490
320 - Political science
341
100 - Philosophy & psychology
277
610 - Medicine & health
152
140 - Specific philosophical schools
151
658 - General management
134
158 - Applied psychology
108
300 - Social sciences
103
700 - The arts; fine & decorative arts
99
900 - History & geography
98
340 - Law
97
600 - Technology
88
200 - Religion
74
174 - Occupational ethics
72
333 - Economics of land & energy
62
363 - Other social problems & services
58
370 - Education
56
650 - Management & auxiliary services
53
000 - Computer science, information & general works
51
331 - Labor economics
51
380 - Commerce, communications & transportation
40
301 - Sociology & anthropology
38
800 - Literature & rhetoric
36
620 - Engineering & allied operations
35
338 - Production
34
302 - Social interaction
31
400 - Language
29
361 - Social problems & social welfare in general
25
580 - Plants (Botany)
25
120 - Epistemology, causation & humankind
24
500 - Natural sciences & mathematics
21
530 - Physics
19
551 - Geology, hydrology & meteorology
17
304 - Factors affecting social behavior
16
576 - Genetics & evolution
14
581 - Specific topics in natural history
14
410 - Linguistics
13
670 - Manufacturing
12
297 - Islam, Babism & Bahai Faith
11
630 - Agriculture & related technologies
11
381 - Commerce
8
791 - Public performances
8
153 - Mental processes & intelligence
7
332 - Financial economics
7
384 - Communications; telecommunication
7
720 - Architecture
6
001 - Knowledge
5
155 - Differential & developmental psychology
5
360 - Social problems & services; associations
5
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