Classification
000 - Computer science, information & general works
333 - Economics of land & energy
700 - The arts; fine & decorative arts
600 - Technology
6
380 - Commerce, communications & transportation
4
330 - Economics
3
363 - Other social problems & services
3
370 - Education
3
620 - Engineering & allied operations
3
900 - History & geography
3
140 - Specific philosophical schools
2
610 - Medicine & health
2
658 - General management
2
720 - Architecture
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
304 - Factors affecting social behavior
1
320 - Political science
1
340 - Law
1
400 - Language
1
500 - Natural sciences & mathematics
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
800 - Literature & rhetoric
1