Classification
330 - Economics
623
320 - Political science
318
340 - Law
152
900 - History & geography
64
332 - Financial economics
50
339 - Macroeconomics & related topics
33
300 - Social sciences
29
658 - General management
23
000 - Computer science, information & general works
21
700 - The arts; fine & decorative arts
18
333 - Economics of land & energy
11
343 - Military, tax, trade & industrial law
11
336 - Public finance
10
820 - English & Old English literatures
10
600 - Technology
9
500 - Natural sciences & mathematics
8
331 - Labor economics
7
368 - Insurance
7
380 - Commerce, communications & transportation
7
620 - Engineering & allied operations
7
338 - Production
6
630 - Agriculture & related technologies
6
158 - Applied psychology
5
363 - Other social problems & services
5
576 - Genetics & evolution
5
610 - Medicine & health
4
640 - Home & family management
4
140 - Specific philosophical schools
2
302 - Social interaction
2
350 - Public administration & military science
2
352 - General considerations of public administration
2
381 - Commerce
2
580 - Plants (Botany)
2
670 - Manufacturing
2
940 - History of Europe
2
020 - Library & information sciences
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
305 - Social groups
1
341 - Law of nations
1
344 - Labor, social, education & cultural law
1
346 - Private law
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
370 - Education
1
371 - Schools & their activities; special education
1
551 - Geology, hydrology & meteorology
1
646 - Sewing, clothing & personal living
1
650 - Management & auxiliary services
1
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