Classification
000 - Computer science, information & general works
300 - Social sciences
320 - Political science
340 - Law
380 - Commerce, communications & transportation
330 - Economics
2
700 - The arts; fine & decorative arts
2
100 - Philosophy & psychology
1
170 - Ethics
1
301 - Sociology & anthropology
1
363 - Other social problems & services
1
370 - Education
1
600 - Technology
1
620 - Engineering & allied operations
1
658 - General management
1
791 - Public performances
1
900 - History & geography
1