Classification
380 - Commerce, communications & transportation
900 - History & geography
23
320 - Political science
8
330 - Economics
4
300 - Social sciences
3
700 - The arts; fine & decorative arts
3
140 - Specific philosophical schools
2
410 - Linguistics
2
576 - Genetics & evolution
2
200 - Religion
1
304 - Factors affecting social behavior
1
370 - Education
1
400 - Language
1
610 - Medicine & health
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1