Classification
000 - Computer science, information & general works
15
500 - Natural sciences & mathematics
14
700 - The arts; fine & decorative arts
12
330 - Economics
3
515 - Analysis
3
576 - Genetics & evolution
3
600 - Technology
3
620 - Engineering & allied operations
2
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
551 - Geology, hydrology & meteorology
1
800 - Literature & rhetoric
1
900 - History & geography
1