Classification
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
68
333 - Economics of land & energy
63
330 - Economics
62
600 - Technology
55
363 - Other social problems & services
50
000 - Computer science, information & general works
47
900 - History & geography
39
620 - Engineering & allied operations
36
610 - Medicine & health
34
370 - Education
31
140 - Specific philosophical schools
29
320 - Political science
26
658 - General management
20
576 - Genetics & evolution
19
400 - Language
16
551 - Geology, hydrology & meteorology
15
720 - Architecture
15
500 - Natural sciences & mathematics
13
580 - Plants (Botany)
13
340 - Law
12
410 - Linguistics
12
800 - Literature & rhetoric
11
414 - Phonology & phonetics
9
300 - Social sciences
6
630 - Agriculture & related technologies
6
304 - Factors affecting social behavior
5
581 - Specific topics in natural history
5
170 - Ethics
4
612 - Human physiology
4
100 - Philosophy & psychology
3
361 - Social problems & social welfare in general
3
530 - Physics
3
657 - Accounting
3
780 - Music
3
200 - Religion
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
297 - Islam, Babism & Bahai Faith
1
301 - Sociology & anthropology
1
350 - Public administration & military science
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
791 - Public performances
1
920 - Biography, genealogy & insignia
1