Classification
330 - Economics
323
700 - The arts; fine & decorative arts
164
333 - Economics of land & energy
162
000 - Computer science, information & general works
142
600 - Technology
142
320 - Political science
116
610 - Medicine & health
107
620 - Engineering & allied operations
98
900 - History & geography
96
380 - Commerce, communications & transportation
87
363 - Other social problems & services
78
658 - General management
61
331 - Labor economics
54
580 - Plants (Botany)
54
300 - Social sciences
48
140 - Specific philosophical schools
47
551 - Geology, hydrology & meteorology
43
500 - Natural sciences & mathematics
42
630 - Agriculture & related technologies
37
576 - Genetics & evolution
28
650 - Management & auxiliary services
25
158 - Applied psychology
21
340 - Law
21
370 - Education
18
612 - Human physiology
18
540 - Chemistry & allied sciences
16
304 - Factors affecting social behavior
14
414 - Phonology & phonetics
14
720 - Architecture
14
530 - Physics
12
306 - Culture & institutions
11
581 - Specific topics in natural history
10
800 - Literature & rhetoric
10
302 - Social interaction
8
100 - Philosophy & psychology
7
327 - International relations
7
338 - Production
7
400 - Language
6
615 - Pharmacology & therapeutics
6
670 - Manufacturing
6
170 - Ethics
5
005 - Computer programming, programs & data
4
361 - Social problems & social welfare in general
4
519 - Probabilities & applied mathematics
4
550 - Earth sciences
4
770 - Photography, photographs & computer art
4
153 - Mental processes & intelligence
3
381 - Commerce
3
382 - International commerce
3
384 - Communications; telecommunication
3
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