Classification
000 - Computer science, information & general works
340 - Law
700 - The arts; fine & decorative arts
64
333 - Economics of land & energy
43
330 - Economics
41
600 - Technology
40
380 - Commerce, communications & transportation
33
363 - Other social problems & services
31
500 - Natural sciences & mathematics
29
320 - Political science
28
900 - History & geography
24
530 - Physics
19
140 - Specific philosophical schools
18
576 - Genetics & evolution
18
610 - Medicine & health
18
620 - Engineering & allied operations
16
300 - Social sciences
13
100 - Philosophy & psychology
12
370 - Education
11
170 - Ethics
9
580 - Plants (Botany)
9
658 - General management
9
551 - Geology, hydrology & meteorology
7
400 - Language
6
630 - Agriculture & related technologies
6
200 - Religion
5
304 - Factors affecting social behavior
5
540 - Chemistry & allied sciences
5
301 - Sociology & anthropology
4
414 - Phonology & phonetics
4
410 - Linguistics
3
720 - Architecture
3
800 - Literature & rhetoric
3
120 - Epistemology, causation & humankind
2
364 - Criminology
2
791 - Public performances
2
297 - Islam, Babism & Bahai Faith
1
350 - Public administration & military science
1
351 - Public administration
1
361 - Social problems & social welfare in general
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
612 - Human physiology
1
657 - Accounting
1
780 - Music
1