Classification
380 - Commerce, communications & transportation
330 - Economics
76
320 - Political science
50
700 - The arts; fine & decorative arts
45
333 - Economics of land & energy
44
900 - History & geography
42
000 - Computer science, information & general works
38
600 - Technology
32
140 - Specific philosophical schools
25
340 - Law
25
363 - Other social problems & services
24
610 - Medicine & health
23
620 - Engineering & allied operations
17
300 - Social sciences
15
551 - Geology, hydrology & meteorology
14
370 - Education
12
630 - Agriculture & related technologies
9
304 - Factors affecting social behavior
8
576 - Genetics & evolution
8
580 - Plants (Botany)
8
658 - General management
8
301 - Sociology & anthropology
6
720 - Architecture
6
400 - Language
5
410 - Linguistics
5
100 - Philosophy & psychology
4
500 - Natural sciences & mathematics
3
530 - Physics
3
581 - Specific topics in natural history
3
800 - Literature & rhetoric
3
170 - Ethics
2
200 - Religion
2
361 - Social problems & social welfare in general
2
612 - Human physiology
2
350 - Public administration & military science
1
364 - Criminology
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
550 - Earth sciences
1
615 - Pharmacology & therapeutics
1
657 - Accounting
1
770 - Photography, photographs & computer art
1
780 - Music
1
791 - Public performances
1