Classification
000 - Computer science, information & general works
340 - Law
600 - Technology
11
620 - Engineering & allied operations
900 - History & geography
700 - The arts; fine & decorative arts
8
333 - Economics of land & energy
5
330 - Economics
4
363 - Other social problems & services
4
380 - Commerce, communications & transportation
4
370 - Education
2
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
320 - Political science
1
400 - Language
1
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
720 - Architecture
1
800 - Literature & rhetoric
1