Classification
000 - Computer science, information & general works
340 - Law
600 - Technology
320 - Political science
3
330 - Economics
3
363 - Other social problems & services
3
370 - Education
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
2
333 - Economics of land & energy
1
380 - Commerce, communications & transportation
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
657 - Accounting
1