Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
600 - Technology
353
000 - Computer science, information & general works
351
333 - Economics of land & energy
328
140 - Specific philosophical schools
279
363 - Other social problems & services
232
580 - Plants (Botany)
226
620 - Engineering & allied operations
221
330 - Economics
182
900 - History & geography
174
380 - Commerce, communications & transportation
156
540 - Chemistry & allied sciences
104
370 - Education
101
320 - Political science
74
576 - Genetics & evolution
66
551 - Geology, hydrology & meteorology
64
630 - Agriculture & related technologies
64
500 - Natural sciences & mathematics
57
615 - Pharmacology & therapeutics
56
612 - Human physiology
54
100 - Philosophy & psychology
53
340 - Law
40
414 - Phonology & phonetics
40
658 - General management
39
304 - Factors affecting social behavior
38
581 - Specific topics in natural history
38
300 - Social sciences
36
800 - Literature & rhetoric
36
720 - Architecture
35
400 - Language
27
170 - Ethics
26
200 - Religion
17
301 - Sociology & anthropology
17
530 - Physics
16
361 - Social problems & social welfare in general
13
410 - Linguistics
11
780 - Music
11
362 - Social welfare problems & services
6
770 - Photography, photographs & computer art
5
360 - Social problems & services; associations
4
120 - Epistemology, causation & humankind
3
297 - Islam, Babism & Bahai Faith
3
350 - Public administration & military science
3
306 - Culture & institutions
2
338 - Production
2
520 - Astronomy & allied sciences
2
550 - Earth sciences
2
590 - Animals (Zoology)
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
more ...