Classification
000 - Computer science, information & general works
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
38
333 - Economics of land & energy
32
600 - Technology
25
330 - Economics
23
363 - Other social problems & services
23
610 - Medicine & health
18
900 - History & geography
16
320 - Political science
15
620 - Engineering & allied operations
15
576 - Genetics & evolution
11
140 - Specific philosophical schools
9
551 - Geology, hydrology & meteorology
9
720 - Architecture
9
500 - Natural sciences & mathematics
7
580 - Plants (Botany)
6
304 - Factors affecting social behavior
5
530 - Physics
5
370 - Education
4
800 - Literature & rhetoric
4
414 - Phonology & phonetics
3
540 - Chemistry & allied sciences
3
658 - General management
3
340 - Law
2
400 - Language
2
581 - Specific topics in natural history
2
630 - Agriculture & related technologies
2
780 - Music
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
297 - Islam, Babism & Bahai Faith
1
350 - Public administration & military science
1
364 - Criminology
1
410 - Linguistics
1
657 - Accounting
1