Classification
610 - Medicine & health
148
330 - Economics
105
000 - Computer science, information & general works
80
570 - Life sciences; biology
75
700 - The arts; fine & decorative arts
63
600 - Technology
57
551 - Geology, hydrology & meteorology
46
333 - Economics of land & energy
45
363 - Other social problems & services
43
620 - Engineering & allied operations
42
370 - Education
37
900 - History & geography
33
380 - Commerce, communications & transportation
28
140 - Specific philosophical schools
23
320 - Political science
21
580 - Plants (Botany)
20
540 - Chemistry & allied sciences
18
576 - Genetics & evolution
17
500 - Natural sciences & mathematics
14
658 - General management
11
800 - Literature & rhetoric
9
340 - Law
8
630 - Agriculture & related technologies
8
100 - Philosophy & psychology
7
338 - Production
6
400 - Language
6
530 - Physics
6
581 - Specific topics in natural history
5
720 - Architecture
5
304 - Factors affecting social behavior
4
543 - Analytical chemistry
4
550 - Earth sciences
4
612 - Human physiology
4
615 - Pharmacology & therapeutics
4
632 - Plant injuries, diseases & pests
4
660 - Chemical engineering
4
300 - Social sciences
3
628 - Sanitary & municipal engineering
3
301 - Sociology & anthropology
2
361 - Social problems & social welfare in general
2
362 - Social welfare problems & services
2
414 - Phonology & phonetics
2
520 - Astronomy & allied sciences
2
621 - Applied physics
2
004 - Data processing & computer science
1
025 - Library operations
1
120 - Epistemology, causation & humankind
1
170 - Ethics
1
174 - Occupational ethics
1
200 - Religion
1
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