Classification
340 - Law
380 - Commerce, communications & transportation
600 - Technology
620 - Engineering & allied operations
22
363 - Other social problems & services
20
900 - History & geography
20
700 - The arts; fine & decorative arts
17
330 - Economics
15
333 - Economics of land & energy
15
000 - Computer science, information & general works
11
576 - Genetics & evolution
11
140 - Specific philosophical schools
10
320 - Political science
10
500 - Natural sciences & mathematics
9
720 - Architecture
7
580 - Plants (Botany)
6
610 - Medicine & health
6
300 - Social sciences
5
370 - Education
4
400 - Language
4
630 - Agriculture & related technologies
4
170 - Ethics
2
200 - Religion
2
530 - Physics
2
551 - Geology, hydrology & meteorology
2
780 - Music
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
364 - Criminology
1
540 - Chemistry & allied sciences
1
657 - Accounting
1
658 - General management
1
770 - Photography, photographs & computer art
1
791 - Public performances
1