Classification
000 - Computer science, information & general works
330 - Economics
333 - Economics of land & energy
700 - The arts; fine & decorative arts
600 - Technology
82
363 - Other social problems & services
74
320 - Political science
50
900 - History & geography
45
620 - Engineering & allied operations
44
380 - Commerce, communications & transportation
40
551 - Geology, hydrology & meteorology
35
610 - Medicine & health
35
140 - Specific philosophical schools
34
576 - Genetics & evolution
22
580 - Plants (Botany)
21
630 - Agriculture & related technologies
20
658 - General management
18
370 - Education
16
340 - Law
14
500 - Natural sciences & mathematics
13
720 - Architecture
13
530 - Physics
11
581 - Specific topics in natural history
10
800 - Literature & rhetoric
10
400 - Language
9
540 - Chemistry & allied sciences
9
304 - Factors affecting social behavior
8
100 - Philosophy & psychology
7
300 - Social sciences
7
414 - Phonology & phonetics
6
200 - Religion
5
410 - Linguistics
5
657 - Accounting
5
301 - Sociology & anthropology
4
361 - Social problems & social welfare in general
3
612 - Human physiology
3
170 - Ethics
2
297 - Islam, Babism & Bahai Faith
2
770 - Photography, photographs & computer art
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
350 - Public administration & military science
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1
780 - Music
1