Classification
380 - Commerce, communications & transportation
620 - Engineering & allied operations
600 - Technology
364
900 - History & geography
286
700 - The arts; fine & decorative arts
228
333 - Economics of land & energy
199
000 - Computer science, information & general works
123
363 - Other social problems & services
104
330 - Economics
84
140 - Specific philosophical schools
60
610 - Medicine & health
54
576 - Genetics & evolution
47
500 - Natural sciences & mathematics
46
580 - Plants (Botany)
43
720 - Architecture
34
320 - Political science
33
551 - Geology, hydrology & meteorology
32
630 - Agriculture & related technologies
30
340 - Law
26
540 - Chemistry & allied sciences
24
658 - General management
23
370 - Education
22
300 - Social sciences
18
400 - Language
17
530 - Physics
16
800 - Literature & rhetoric
16
414 - Phonology & phonetics
14
384 - Communications; telecommunication
10
100 - Philosophy & psychology
9
581 - Specific topics in natural history
8
304 - Factors affecting social behavior
7
612 - Human physiology
7
170 - Ethics
6
410 - Linguistics
6
780 - Music
6
808 - Rhetoric & collections of literature
4
361 - Social problems & social welfare in general
3
550 - Earth sciences
3
004 - Data processing & computer science
2
200 - Religion
2
301 - Sociology & anthropology
2
302 - Social interaction
2
331 - Labor economics
2
657 - Accounting
2
745 - Decorative arts
2
005 - Computer programming, programs & data
1
006 - Special computer methods
1
120 - Epistemology, causation & humankind
1
297 - Islam, Babism & Bahai Faith
1
381 - Commerce
1
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