Classification
000 - Computer science, information & general works
320 - Political science
330 - Economics
144
700 - The arts; fine & decorative arts
132
333 - Economics of land & energy
111
363 - Other social problems & services
89
380 - Commerce, communications & transportation
87
600 - Technology
78
551 - Geology, hydrology & meteorology
66
610 - Medicine & health
46
900 - History & geography
45
140 - Specific philosophical schools
40
370 - Education
31
620 - Engineering & allied operations
31
300 - Social sciences
29
340 - Law
28
630 - Agriculture & related technologies
24
581 - Specific topics in natural history
21
658 - General management
19
100 - Philosophy & psychology
18
580 - Plants (Botany)
17
576 - Genetics & evolution
15
720 - Architecture
14
500 - Natural sciences & mathematics
13
304 - Factors affecting social behavior
11
400 - Language
10
170 - Ethics
9
361 - Social problems & social welfare in general
9
800 - Literature & rhetoric
9
540 - Chemistry & allied sciences
8
530 - Physics
7
657 - Accounting
7
200 - Religion
6
301 - Sociology & anthropology
6
414 - Phonology & phonetics
6
297 - Islam, Babism & Bahai Faith
5
550 - Earth sciences
5
410 - Linguistics
4
520 - Astronomy & allied sciences
3
791 - Public performances
3
350 - Public administration & military science
2
364 - Criminology
2
360 - Social problems & services; associations
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
650 - Management & auxiliary services
1
770 - Photography, photographs & computer art
1