Classification
100 - Philosophy & psychology
610 - Medicine & health
320 - Political science
4
330 - Economics
3
140 - Specific philosophical schools
2
304 - Factors affecting social behavior
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
170 - Ethics
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
600 - Technology
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1
900 - History & geography
1