Classification
320 - Political science
700 - The arts; fine & decorative arts
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
300 - Social sciences
2
370 - Education
2
380 - Commerce, communications & transportation
2
400 - Language
2
600 - Technology
2
900 - History & geography
2
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
363 - Other social problems & services
1
410 - Linguistics
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
780 - Music
1