Classification
700 - The arts; fine & decorative arts
791 - Public performances
900 - History & geography
3
300 - Social sciences
2
000 - Computer science, information & general works
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
340 - Law
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
400 - Language
1
658 - General management
1
800 - Literature & rhetoric
1