Classification
000 - Computer science, information & general works
17
610 - Medicine & health
658 - General management
363 - Other social problems & services
9
700 - The arts; fine & decorative arts
9
333 - Economics of land & energy
8
330 - Economics
7
580 - Plants (Botany)
7
630 - Agriculture & related technologies
7
600 - Technology
6
620 - Engineering & allied operations
5
140 - Specific philosophical schools
4
370 - Education
3
551 - Geology, hydrology & meteorology
3
576 - Genetics & evolution
3
100 - Philosophy & psychology
2
361 - Social problems & social welfare in general
2
380 - Commerce, communications & transportation
2
300 - Social sciences
1
320 - Political science
1
340 - Law
1
612 - Human physiology
1
800 - Literature & rhetoric
1
900 - History & geography
1