Classification
000 - Computer science, information & general works
333 - Economics of land & energy
181
700 - The arts; fine & decorative arts
174
600 - Technology
158
620 - Engineering & allied operations
103
330 - Economics
90
900 - History & geography
83
380 - Commerce, communications & transportation
69
363 - Other social problems & services
58
500 - Natural sciences & mathematics
50
580 - Plants (Botany)
49
530 - Physics
47
610 - Medicine & health
42
658 - General management
41
576 - Genetics & evolution
38
340 - Law
33
320 - Political science
26
140 - Specific philosophical schools
23
551 - Geology, hydrology & meteorology
23
720 - Architecture
18
540 - Chemistry & allied sciences
16
414 - Phonology & phonetics
12
630 - Agriculture & related technologies
10
304 - Factors affecting social behavior
8
400 - Language
8
800 - Literature & rhetoric
8
331 - Labor economics
6
338 - Production
5
370 - Education
5
384 - Communications; telecommunication
5
581 - Specific topics in natural history
4
657 - Accounting
4
410 - Linguistics
3
612 - Human physiology
3
745 - Decorative arts
3
780 - Music
3
200 - Religion
2
350 - Public administration & military science
2
361 - Social problems & social welfare in general
2
001 - Knowledge
1
100 - Philosophy & psychology
1
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
374 - Adult education
1
381 - Commerce
1
550 - Earth sciences
1
615 - Pharmacology & therapeutics
1
621 - Applied physics
1
770 - Photography, photographs & computer art
1
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