Classification
140 - Specific philosophical schools
333 - Economics of land & energy
6
300 - Social sciences
3
320 - Political science
3
330 - Economics
3
340 - Law
3
700 - The arts; fine & decorative arts
3
304 - Factors affecting social behavior
2
658 - General management
2
900 - History & geography
2
000 - Computer science, information & general works
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
576 - Genetics & evolution
1
600 - Technology
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1