Classification
610 - Medicine & health
700 - The arts; fine & decorative arts
330 - Economics
21
000 - Computer science, information & general works
14
363 - Other social problems & services
11
600 - Technology
11
333 - Economics of land & energy
10
140 - Specific philosophical schools
9
551 - Geology, hydrology & meteorology
7
620 - Engineering & allied operations
7
380 - Commerce, communications & transportation
6
580 - Plants (Botany)
6
900 - History & geography
6
320 - Political science
5
630 - Agriculture & related technologies
5
800 - Literature & rhetoric
3
370 - Education
2
540 - Chemistry & allied sciences
2
576 - Genetics & evolution
2
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
340 - Law
1
400 - Language
1
414 - Phonology & phonetics
1
530 - Physics
1
581 - Specific topics in natural history
1
612 - Human physiology
1
720 - Architecture
1