Classification
350 - Public administration & military science
330 - Economics
6
600 - Technology
5
333 - Economics of land & energy
4
000 - Computer science, information & general works
3
610 - Medicine & health
3
140 - Specific philosophical schools
2
320 - Political science
2
340 - Law
2
363 - Other social problems & services
2
370 - Education
2
380 - Commerce, communications & transportation
2
700 - The arts; fine & decorative arts
2
170 - Ethics
1
297 - Islam, Babism & Bahai Faith
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
612 - Human physiology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
657 - Accounting
1