Classification
658 - General management
1,665
158 - Applied psychology
201
650 - Management & auxiliary services
184
330 - Economics
56
140 - Specific philosophical schools
50
610 - Medicine & health
25
174 - Occupational ethics
22
338 - Production
22
613 - Personal health & safety
21
150 - Psychology
20
300 - Social sciences
20
614 - Incidence & prevention of disease
19
331 - Labor economics
18
362 - Social welfare problems & services
18
333 - Economics of land & energy
17
370 - Education
17
303 - Social processes
16
657 - Accounting
16
306 - Culture & institutions
13
332 - Financial economics
13
170 - Ethics
11
302 - Social interaction
11
371 - Schools & their activities; special education
10
700 - The arts; fine & decorative arts
10
351 - Public administration
9
344 - Labor, social, education & cultural law
8
380 - Commerce, communications & transportation
8
600 - Technology
8
301 - Sociology & anthropology
7
320 - Political science
7
343 - Military, tax, trade & industrial law
7
346 - Private law
7
000 - Computer science, information & general works
6
005 - Computer programming, programs & data
6
620 - Engineering & allied operations
6
304 - Factors affecting social behavior
5
500 - Natural sciences & mathematics
5
670 - Manufacturing
5
004 - Data processing & computer science
4
006 - Special computer methods
4
337 - International economics
4
353 - Specific fields of public administration
4
363 - Other social problems & services
4
616 - Diseases
4
100 - Philosophy & psychology
3
155 - Differential & developmental psychology
3
305 - Social groups
3
336 - Public finance
3
374 - Adult education
3
400 - Language
3
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