Classification
500 - Natural sciences & mathematics
658 - General management
213
330 - Economics
207
381 - Commerce
198
302 - Social interaction
162
300 - Social sciences
160
670 - Manufacturing
154
338 - Production
36
331 - Labor economics
18
620 - Engineering & allied operations
16
000 - Computer science, information & general works
15
659 - Advertising & public relations
14
303 - Social processes
13
700 - The arts; fine & decorative arts
13
006 - Special computer methods
12
158 - Applied psychology
12
600 - Technology
12
650 - Management & auxiliary services
11
333 - Economics of land & energy
10
745 - Decorative arts
8
380 - Commerce, communications & transportation
7
382 - International commerce
7
332 - Financial economics
6
363 - Other social problems & services
6
384 - Communications; telecommunication
6
900 - History & geography
6
001 - Knowledge
5
025 - Library operations
5
005 - Computer programming, programs & data
4
530 - Physics
4
576 - Genetics & evolution
4
153 - Mental processes & intelligence
3
370 - Education
3
519 - Probabilities & applied mathematics
3
100 - Philosophy & psychology
2
304 - Factors affecting social behavior
2
320 - Political science
2
339 - Macroeconomics & related topics
2
352 - General considerations of public administration
2
510 - Mathematics
2
800 - Literature & rhetoric
2
004 - Data processing & computer science
1
140 - Specific philosophical schools
1
155 - Differential & developmental psychology
1
306 - Culture & institutions
1
340 - Law
1
364 - Criminology
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
580 - Plants (Botany)
1
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