Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
333 - Economics of land & energy
90
700 - The arts; fine & decorative arts
74
363 - Other social problems & services
67
600 - Technology
48
380 - Commerce, communications & transportation
47
551 - Geology, hydrology & meteorology
36
140 - Specific philosophical schools
29
610 - Medicine & health
25
900 - History & geography
25
300 - Social sciences
24
620 - Engineering & allied operations
23
630 - Agriculture & related technologies
21
370 - Education
18
340 - Law
15
658 - General management
14
581 - Specific topics in natural history
13
576 - Genetics & evolution
11
100 - Philosophy & psychology
10
580 - Plants (Botany)
8
720 - Architecture
8
304 - Factors affecting social behavior
7
500 - Natural sciences & mathematics
6
530 - Physics
6
657 - Accounting
6
800 - Literature & rhetoric
6
170 - Ethics
5
200 - Religion
5
410 - Linguistics
5
540 - Chemistry & allied sciences
5
297 - Islam, Babism & Bahai Faith
4
301 - Sociology & anthropology
4
400 - Language
4
414 - Phonology & phonetics
4
361 - Social problems & social welfare in general
3
550 - Earth sciences
3
350 - Public administration & military science
2
770 - Photography, photographs & computer art
2
780 - Music
2
120 - Epistemology, causation & humankind
1
791 - Public performances
1