Classification
000 - Computer science, information & general works
140 - Specific philosophical schools
330 - Economics
333 - Economics of land & energy
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
600 - Technology
363 - Other social problems & services
2
620 - Engineering & allied operations
2
657 - Accounting
2
700 - The arts; fine & decorative arts
2
320 - Political science
1
370 - Education
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
610 - Medicine & health
1
900 - History & geography
1