Classification
380 - Commerce, communications & transportation
600 - Technology
673
700 - The arts; fine & decorative arts
633
333 - Economics of land & energy
542
000 - Computer science, information & general works
536
900 - History & geography
494
620 - Engineering & allied operations
474
330 - Economics
449
610 - Medicine & health
333
363 - Other social problems & services
301
320 - Political science
265
140 - Specific philosophical schools
236
370 - Education
179
340 - Law
142
580 - Plants (Botany)
136
300 - Social sciences
132
400 - Language
131
576 - Genetics & evolution
130
551 - Geology, hydrology & meteorology
121
500 - Natural sciences & mathematics
113
658 - General management
96
100 - Philosophy & psychology
92
410 - Linguistics
90
800 - Literature & rhetoric
81
540 - Chemistry & allied sciences
71
720 - Architecture
69
630 - Agriculture & related technologies
67
530 - Physics
64
304 - Factors affecting social behavior
55
414 - Phonology & phonetics
55
581 - Specific topics in natural history
48
301 - Sociology & anthropology
42
612 - Human physiology
39
200 - Religion
31
170 - Ethics
30
780 - Music
23
361 - Social problems & social welfare in general
20
615 - Pharmacology & therapeutics
20
791 - Public performances
13
657 - Accounting
10
297 - Islam, Babism & Bahai Faith
8
550 - Earth sciences
8
350 - Public administration & military science
7
120 - Epistemology, causation & humankind
5
336 - Public finance
4
364 - Criminology
4
770 - Photography, photographs & computer art
4
590 - Animals (Zoology)
3
650 - Management & auxiliary services
3
160 - Logic
2
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