Classification
658 - General management
242
500 - Natural sciences & mathematics
160
330 - Economics
159
001 - Knowledge
134
381 - Commerce
98
300 - Social sciences
70
302 - Social interaction
66
620 - Engineering & allied operations
63
338 - Production
59
000 - Computer science, information & general works
58
670 - Manufacturing
53
519 - Probabilities & applied mathematics
49
745 - Decorative arts
45
006 - Special computer methods
31
331 - Labor economics
29
510 - Mathematics
28
005 - Computer programming, programs & data
26
003 - Systems
24
153 - Mental processes & intelligence
23
384 - Communications; telecommunication
19
332 - Financial economics
12
650 - Management & auxiliary services
12
004 - Data processing & computer science
9
158 - Applied psychology
9
610 - Medicine & health
9
507 - Education, research & related topics
7
621 - Applied physics
7
025 - Library operations
5
303 - Social processes
5
170 - Ethics
4
370 - Education
4
371 - Schools & their activities; special education
4
380 - Commerce, communications & transportation
4
615 - Pharmacology & therapeutics
4
174 - Occupational ethics
3
333 - Economics of land & energy
3
515 - Analysis
3
808 - Rhetoric & collections of literature
3
150 - Psychology
2
361 - Social problems & social welfare in general
2
378 - Higher education
2
511 - General principles of mathematics
2
530 - Physics
2
570 - Life sciences; biology
2
600 - Technology
2
616 - Diseases
2
657 - Accounting
2
659 - Advertising & public relations
2
700 - The arts; fine & decorative arts
2
720 - Architecture
2
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