Classification
610 - Medicine & health
7
001 - Knowledge
5
300 - Social sciences
5
330 - Economics
4
362 - Social welfare problems & services
3
658 - General management
3
331 - Labor economics
2
370 - Education
2
500 - Natural sciences & mathematics
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
025 - Library operations
1
100 - Philosophy & psychology
1
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
320 - Political science
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
368 - Insurance
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
542 - Techniques, equipment & materials
1
620 - Engineering & allied operations
1
900 - History & geography
1