Classification
340 - Law
380 - Commerce, communications & transportation
36
333 - Economics of land & energy
19
363 - Other social problems & services
17
600 - Technology
17
700 - The arts; fine & decorative arts
17
000 - Computer science, information & general works
16
330 - Economics
14
620 - Engineering & allied operations
12
500 - Natural sciences & mathematics
11
900 - History & geography
9
576 - Genetics & evolution
8
320 - Political science
6
530 - Physics
6
140 - Specific philosophical schools
5
720 - Architecture
5
580 - Plants (Botany)
4
370 - Education
3
551 - Geology, hydrology & meteorology
3
610 - Medicine & health
3
414 - Phonology & phonetics
2
630 - Agriculture & related technologies
2
658 - General management
2
200 - Religion
1
304 - Factors affecting social behavior
1