Classification
300 - Social sciences
320 - Political science
340 - Law
900 - History & geography
100 - Philosophy & psychology
12
140 - Specific philosophical schools
5
301 - Sociology & anthropology
4
304 - Factors affecting social behavior
3
330 - Economics
3
370 - Education
3
200 - Religion
2
364 - Criminology
2
600 - Technology
2
000 - Computer science, information & general works
1
120 - Epistemology, causation & humankind
1
170 - Ethics
1
333 - Economics of land & energy
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
400 - Language
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
530 - Physics
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
658 - General management
1
700 - The arts; fine & decorative arts
1
770 - Photography, photographs & computer art
1