Classification
000 - Computer science, information & general works
300 - Social sciences
320 - Political science
363 - Other social problems & services
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
3
100 - Philosophy & psychology
1
170 - Ethics
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
370 - Education
1
581 - Specific topics in natural history
1
600 - Technology
1
620 - Engineering & allied operations
1
630 - Agriculture & related technologies
1
900 - History & geography
1