Classification
300 - Social sciences
301 - Sociology & anthropology
52
900 - History & geography
10
320 - Political science
7
610 - Medicine & health
7
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
6
001 - Knowledge
5
140 - Specific philosophical schools
3
330 - Economics
3
370 - Education
3
400 - Language
3
410 - Linguistics
3
340 - Law
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
160 - Logic
1
331 - Labor economics
1
333 - Economics of land & energy
1
337 - International economics
1
338 - Production
1
380 - Commerce, communications & transportation
1
384 - Communications; telecommunication
1
600 - Technology
1
620 - Engineering & allied operations
1
658 - General management
1
770 - Photography, photographs & computer art
1