Classification
600 - Technology
10
900 - History & geography
10
620 - Engineering & allied operations
9
700 - The arts; fine & decorative arts
9
333 - Economics of land & energy
8
363 - Other social problems & services
6
330 - Economics
4
380 - Commerce, communications & transportation
4
610 - Medicine & health
4
000 - Computer science, information & general works
3
140 - Specific philosophical schools
2
414 - Phonology & phonetics
2
551 - Geology, hydrology & meteorology
2
320 - Political science
1
340 - Law
1
370 - Education
1
530 - Physics
1
576 - Genetics & evolution
1
658 - General management
1
720 - Architecture
1