Classification
300 - Social sciences
330 - Economics
380 - Commerce, communications & transportation
10
900 - History & geography
9
000 - Computer science, information & general works
7
320 - Political science
7
600 - Technology
7
100 - Philosophy & psychology
5
400 - Language
5
780 - Music
4
340 - Law
3
370 - Education
3
410 - Linguistics
3
620 - Engineering & allied operations
3
700 - The arts; fine & decorative arts
3
301 - Sociology & anthropology
2
800 - Literature & rhetoric
2
140 - Specific philosophical schools
1
170 - Ethics
1
200 - Religion
1
304 - Factors affecting social behavior
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1
770 - Photography, photographs & computer art
1