Classification
330 - Economics
580
338 - Production
186
333 - Economics of land & energy
97
610 - Medicine & health
92
332 - Financial economics
91
363 - Other social problems & services
65
362 - Social welfare problems & services
51
658 - General management
48
320 - Political science
39
382 - International commerce
33
700 - The arts; fine & decorative arts
30
600 - Technology
29
000 - Computer science, information & general works
28
336 - Public finance
28
331 - Labor economics
25
380 - Commerce, communications & transportation
25
339 - Macroeconomics & related topics
21
305 - Social groups
19
900 - History & geography
19
370 - Education
18
307 - Communities
16
352 - General considerations of public administration
16
570 - Life sciences; biology
15
620 - Engineering & allied operations
15
630 - Agriculture & related technologies
15
300 - Social sciences
13
337 - International economics
13
381 - Commerce
13
500 - Natural sciences & mathematics
13
580 - Plants (Botany)
13
361 - Social problems & social welfare in general
12
551 - Geology, hydrology & meteorology
12
303 - Social processes
11
304 - Factors affecting social behavior
11
340 - Law
11
140 - Specific philosophical schools
10
379 - Public policy issues in education
10
302 - Social interaction
8
346 - Private law
8
368 - Insurance
7
384 - Communications; telecommunication
7
376 - [Unassigned]
6
378 - Higher education
6
576 - Genetics & evolution
6
388 - Transportation; ground transportation
5
670 - Manufacturing
5
800 - Literature & rhetoric
5
001 - Knowledge
4
004 - Data processing & computer science
4
170 - Ethics
4
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