Classification
200 - Religion
360 - Social problems & services; associations
3
000 - Computer science, information & general works
2
100 - Philosophy & psychology
2
170 - Ethics
2
300 - Social sciences
2
320 - Political science
2
340 - Law
2
361 - Social problems & social welfare in general
2
364 - Criminology
2
600 - Technology
2
700 - The arts; fine & decorative arts
2
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
900 - History & geography
1