Classification
370 - Education
000 - Computer science, information & general works
3
333 - Economics of land & energy
3
600 - Technology
3
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
363 - Other social problems & services
2
720 - Architecture
2
330 - Economics
1
380 - Commerce, communications & transportation
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
657 - Accounting
1
800 - Literature & rhetoric
1
900 - History & geography
1