Classification
363 - Other social problems & services
600 - Technology
13
700 - The arts; fine & decorative arts
12
333 - Economics of land & energy
9
620 - Engineering & allied operations
9
900 - History & geography
8
000 - Computer science, information & general works
7
330 - Economics
7
380 - Commerce, communications & transportation
7
500 - Natural sciences & mathematics
5
551 - Geology, hydrology & meteorology
5
140 - Specific philosophical schools
4
364 - Criminology
4
370 - Education
4
720 - Architecture
3
100 - Philosophy & psychology
2
400 - Language
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
120 - Epistemology, causation & humankind
1
200 - Religion
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
320 - Political science
1
331 - Labor economics
1
340 - Law
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
658 - General management
1
800 - Literature & rhetoric
1