Classification
330 - Economics
592
600 - Technology
198
700 - The arts; fine & decorative arts
176
620 - Engineering & allied operations
146
900 - History & geography
116
000 - Computer science, information & general works
110
333 - Economics of land & energy
105
363 - Other social problems & services
68
540 - Chemistry & allied sciences
59
610 - Medicine & health
44
380 - Commerce, communications & transportation
42
576 - Genetics & evolution
41
580 - Plants (Botany)
41
414 - Phonology & phonetics
33
530 - Physics
23
320 - Political science
20
340 - Law
20
140 - Specific philosophical schools
19
800 - Literature & rhetoric
15
500 - Natural sciences & mathematics
12
304 - Factors affecting social behavior
11
720 - Architecture
11
300 - Social sciences
8
630 - Agriculture & related technologies
8
551 - Geology, hydrology & meteorology
7
820 - English & Old English literatures
6
621 - Applied physics
5
370 - Education
4
658 - General management
4
368 - Insurance
3
547 - Organic chemistry
3
581 - Specific topics in natural history
3
615 - Pharmacology & therapeutics
3
628 - Sanitary & municipal engineering
3
650 - Management & auxiliary services
3
170 - Ethics
2
280 - Christian denominations & sects
2
550 - Earth sciences
2
612 - Human physiology
2
660 - Chemical engineering
2
668 - Technology of other organic products
2
200 - Religion
1
262 - Ecclesiology
1
301 - Sociology & anthropology
1
341 - Law of nations
1
347 - Civil procedure & courts
1
361 - Social problems & social welfare in general
1
400 - Language
1
541 - Physical chemistry
1
546 - Inorganic chemistry
1
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