Classification
610 - Medicine & health
000 - Computer science, information & general works
579
700 - The arts; fine & decorative arts
434
600 - Technology
343
333 - Economics of land & energy
267
620 - Engineering & allied operations
222
500 - Natural sciences & mathematics
219
363 - Other social problems & services
214
580 - Plants (Botany)
214
140 - Specific philosophical schools
197
900 - History & geography
168
330 - Economics
144
540 - Chemistry & allied sciences
114
380 - Commerce, communications & transportation
110
630 - Agriculture & related technologies
82
576 - Genetics & evolution
73
551 - Geology, hydrology & meteorology
68
370 - Education
65
612 - Human physiology
53
320 - Political science
51
100 - Philosophy & psychology
49
658 - General management
48
615 - Pharmacology & therapeutics
47
581 - Specific topics in natural history
45
300 - Social sciences
42
800 - Literature & rhetoric
32
304 - Factors affecting social behavior
29
414 - Phonology & phonetics
29
720 - Architecture
28
361 - Social problems & social welfare in general
27
340 - Law
26
530 - Physics
19
170 - Ethics
18
301 - Sociology & anthropology
18
400 - Language
14
200 - Religion
10
410 - Linguistics
10
174 - Occupational ethics
8
384 - Communications; telecommunication
6
590 - Animals (Zoology)
6
374 - Adult education
5
519 - Probabilities & applied mathematics
4
780 - Music
4
364 - Criminology
3
550 - Earth sciences
3
791 - Public performances
3
360 - Social problems & services; associations
2
398 - Folklore
2
770 - Photography, photographs & computer art
2
001 - Knowledge
1
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