Classification
000 - Computer science, information & general works
22
006 - Special computer methods
1
070 - News media, journalism & publishing
3
100 - Philosophy & psychology
2
140 - Specific philosophical schools
9
170 - Ethics
2
200 - Religion
2
300 - Social sciences
17
301 - Sociology & anthropology
3
302 - Social interaction
1
304 - Factors affecting social behavior
2
320 - Political science
49
330 - Economics
94
333 - Economics of land & energy
21
338 - Production
7
340 - Law
14
343 - Military, tax, trade & industrial law
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
25
370 - Education
3
380 - Commerce, communications & transportation
12
381 - Commerce
2
382 - International commerce
9
384 - Communications; telecommunication
5
400 - Language
1
410 - Linguistics
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
6
530 - Physics
3
540 - Chemistry & allied sciences
4
541 - Physical chemistry
1
551 - Geology, hydrology & meteorology
6
576 - Genetics & evolution
16
580 - Plants (Botany)
12
581 - Specific topics in natural history
2
600 - Technology
20
610 - Medicine & health
18
615 - Pharmacology & therapeutics
2
616 - Diseases
1
620 - Engineering & allied operations
15
630 - Agriculture & related technologies
20
632 - Plant injuries, diseases & pests
1
650 - Management & auxiliary services
2
657 - Accounting
1
658 - General management
7
660 - Chemical engineering
1
664 - Food technology
1
668 - Technology of other organic products
1
700 - The arts; fine & decorative arts
30
720 - Architecture
1
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