Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
530 - Physics
333 - Economics of land & energy
11
700 - The arts; fine & decorative arts
11
610 - Medicine & health
7
340 - Law
4
330 - Economics
3
370 - Education
3
400 - Language
3
540 - Chemistry & allied sciences
3
600 - Technology
3
100 - Philosophy & psychology
2
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
2
576 - Genetics & evolution
2
658 - General management
2
900 - History & geography
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
500 - Natural sciences & mathematics
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1