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