Classification
610 - Medicine & health
720 - Architecture
333 - Economics of land & energy
10
363 - Other social problems & services
10
700 - The arts; fine & decorative arts
9
380 - Commerce, communications & transportation
8
330 - Economics
7
600 - Technology
7
900 - History & geography
6
140 - Specific philosophical schools
5
320 - Political science
5
370 - Education
5
551 - Geology, hydrology & meteorology
5
620 - Engineering & allied operations
5
000 - Computer science, information & general works
4
576 - Genetics & evolution
3
580 - Plants (Botany)
3
100 - Philosophy & psychology
2
170 - Ethics
2
300 - Social sciences
2
340 - Law
2
500 - Natural sciences & mathematics
2
630 - Agriculture & related technologies
2
657 - Accounting
2
800 - Literature & rhetoric
2
550 - Earth sciences
1
581 - Specific topics in natural history
1
612 - Human physiology
1
780 - Music
1