Classification
580 - Plants (Botany)
600 - Technology
700 - The arts; fine & decorative arts
333 - Economics of land & energy
15
620 - Engineering & allied operations
14
363 - Other social problems & services
12
900 - History & geography
11
330 - Economics
7
610 - Medicine & health
6
000 - Computer science, information & general works
5
380 - Commerce, communications & transportation
5
630 - Agriculture & related technologies
5
576 - Genetics & evolution
4
170 - Ethics
3
340 - Law
3
658 - General management
3
800 - Literature & rhetoric
3
140 - Specific philosophical schools
2
300 - Social sciences
2
304 - Factors affecting social behavior
2
370 - Education
2
414 - Phonology & phonetics
2
720 - Architecture
2
400 - Language
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
612 - Human physiology
1