Classification
300 - Social sciences
4
320 - Political science
330 - Economics
380 - Commerce, communications & transportation
400 - Language
600 - Technology
900 - History & geography
4
100 - Philosophy & psychology
3
620 - Engineering & allied operations
3
780 - Music
3
340 - Law
2
370 - Education
2
410 - Linguistics
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
200 - Religion
1
301 - Sociology & anthropology
1
630 - Agriculture & related technologies
1
658 - General management
1