Classification
330 - Economics
1,043
630 - Agriculture & related technologies
408
320 - Political science
331
600 - Technology
231
620 - Engineering & allied operations
205
333 - Economics of land & energy
137
700 - The arts; fine & decorative arts
136
363 - Other social problems & services
119
000 - Computer science, information & general works
105
340 - Law
102
580 - Plants (Botany)
98
300 - Social sciences
97
900 - History & geography
96
610 - Medicine & health
83
581 - Specific topics in natural history
47
551 - Geology, hydrology & meteorology
42
380 - Commerce, communications & transportation
41
140 - Specific philosophical schools
35
800 - Literature & rhetoric
23
500 - Natural sciences & mathematics
22
576 - Genetics & evolution
22
658 - General management
19
361 - Social problems & social welfare in general
16
414 - Phonology & phonetics
14
720 - Architecture
14
301 - Sociology & anthropology
13
540 - Chemistry & allied sciences
13
370 - Education
12
304 - Factors affecting social behavior
11
338 - Production
11
100 - Philosophy & psychology
10
170 - Ethics
10
400 - Language
9
530 - Physics
7
382 - International commerce
6
410 - Linguistics
6
200 - Religion
5
331 - Labor economics
3
631 - Techniques, equipment & materials
3
657 - Accounting
3
664 - Food technology
3
780 - Music
3
160 - Logic
2
364 - Criminology
2
381 - Commerce
2
550 - Earth sciences
2
590 - Animals (Zoology)
2
612 - Human physiology
2
632 - Plant injuries, diseases & pests
2
006 - Special computer methods
1
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