Classification
620 - Engineering & allied operations
600 - Technology
186
900 - History & geography
155
700 - The arts; fine & decorative arts
122
333 - Economics of land & energy
80
000 - Computer science, information & general works
72
363 - Other social problems & services
64
610 - Medicine & health
53
330 - Economics
48
380 - Commerce, communications & transportation
48
580 - Plants (Botany)
36
140 - Specific philosophical schools
35
500 - Natural sciences & mathematics
31
658 - General management
27
630 - Agriculture & related technologies
26
320 - Political science
20
576 - Genetics & evolution
19
720 - Architecture
19
370 - Education
18
551 - Geology, hydrology & meteorology
15
340 - Law
14
400 - Language
11
414 - Phonology & phonetics
10
540 - Chemistry & allied sciences
9
530 - Physics
7
005 - Computer programming, programs & data
6
304 - Factors affecting social behavior
6
410 - Linguistics
5
100 - Philosophy & psychology
4
338 - Production
4
745 - Decorative arts
4
780 - Music
4
300 - Social sciences
3
519 - Probabilities & applied mathematics
3
657 - Accounting
3
004 - Data processing & computer science
2
006 - Special computer methods
2
331 - Labor economics
2
384 - Communications; telecommunication
2
510 - Mathematics
2
550 - Earth sciences
2
581 - Specific topics in natural history
2
612 - Human physiology
2
621 - Applied physics
2
800 - Literature & rhetoric
2
003 - Systems
1
153 - Mental processes & intelligence
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
303 - Social processes
1
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