Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
700 - The arts; fine & decorative arts
14
333 - Economics of land & energy
11
600 - Technology
9
330 - Economics
8
320 - Political science
6
610 - Medicine & health
6
380 - Commerce, communications & transportation
4
363 - Other social problems & services
3
551 - Geology, hydrology & meteorology
3
620 - Engineering & allied operations
3
630 - Agriculture & related technologies
3
900 - History & geography
3
300 - Social sciences
2
370 - Education
2
581 - Specific topics in natural history
2
100 - Philosophy & psychology
1
170 - Ethics
1
200 - Religion
1
304 - Factors affecting social behavior
1
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
550 - Earth sciences
1
576 - Genetics & evolution
1
657 - Accounting
1
658 - General management
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1