Classification
100 - Philosophy & psychology
140 - Specific philosophical schools
320 - Political science
600 - Technology
620 - Engineering & allied operations
900 - History & geography
000 - Computer science, information & general works
1
300 - Social sciences
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
340 - Law
1
370 - Education
1
576 - Genetics & evolution
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1