Classification
340 - Law
600 - Technology
620 - Engineering & allied operations
89
700 - The arts; fine & decorative arts
83
900 - History & geography
80
333 - Economics of land & energy
52
000 - Computer science, information & general works
40
330 - Economics
39
363 - Other social problems & services
37
380 - Commerce, communications & transportation
36
320 - Political science
30
610 - Medicine & health
26
140 - Specific philosophical schools
25
576 - Genetics & evolution
23
500 - Natural sciences & mathematics
17
300 - Social sciences
14
580 - Plants (Botany)
14
530 - Physics
13
170 - Ethics
12
370 - Education
12
630 - Agriculture & related technologies
11
100 - Philosophy & psychology
10
551 - Geology, hydrology & meteorology
9
720 - Architecture
9
400 - Language
8
414 - Phonology & phonetics
8
304 - Factors affecting social behavior
6
410 - Linguistics
6
800 - Literature & rhetoric
6
301 - Sociology & anthropology
5
581 - Specific topics in natural history
5
658 - General management
5
200 - Religion
3
120 - Epistemology, causation & humankind
2
350 - Public administration & military science
2
364 - Criminology
2
540 - Chemistry & allied sciences
2
657 - Accounting
2
780 - Music
2
346 - Private law
1
361 - Social problems & social welfare in general
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1
791 - Public performances
1