Classification
000 - Computer science, information & general works
363 - Other social problems & services
600 - Technology
17
700 - The arts; fine & decorative arts
11
333 - Economics of land & energy
8
610 - Medicine & health
6
330 - Economics
4
370 - Education
4
140 - Specific philosophical schools
3
576 - Genetics & evolution
3
500 - Natural sciences & mathematics
2
551 - Geology, hydrology & meteorology
2
620 - Engineering & allied operations
2
658 - General management
2
800 - Literature & rhetoric
2
100 - Philosophy & psychology
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
320 - Political science
1
340 - Law
1
400 - Language
1