Classification
600 - Technology
23
700 - The arts; fine & decorative arts
19
333 - Economics of land & energy
11
610 - Medicine & health
11
000 - Computer science, information & general works
10
380 - Commerce, communications & transportation
7
620 - Engineering & allied operations
6
900 - History & geography
6
414 - Phonology & phonetics
5
580 - Plants (Botany)
5
363 - Other social problems & services
4
530 - Physics
4
140 - Specific philosophical schools
3
330 - Economics
3
540 - Chemistry & allied sciences
3
800 - Literature & rhetoric
3
612 - Human physiology
2
630 - Agriculture & related technologies
2
304 - Factors affecting social behavior
1
370 - Education
1
576 - Genetics & evolution
1
650 - Management & auxiliary services
1