Classification
600 - Technology
700 - The arts; fine & decorative arts
610 - Medicine & health
22
620 - Engineering & allied operations
22
900 - History & geography
19
140 - Specific philosophical schools
16
363 - Other social problems & services
10
580 - Plants (Botany)
9
000 - Computer science, information & general works
8
333 - Economics of land & energy
8
380 - Commerce, communications & transportation
7
612 - Human physiology
7
576 - Genetics & evolution
5
500 - Natural sciences & mathematics
4
320 - Political science
3
330 - Economics
3
340 - Law
3
720 - Architecture
3
414 - Phonology & phonetics
2
551 - Geology, hydrology & meteorology
2
100 - Philosophy & psychology
1
370 - Education
1
540 - Chemistry & allied sciences
1
630 - Agriculture & related technologies
1
658 - General management
1
780 - Music
1
800 - Literature & rhetoric
1