Classification
100 - Philosophy & psychology
170 - Ethics
2
320 - Political science
380 - Commerce, communications & transportation
610 - Medicine & health
000 - Computer science, information & general works
1
140 - Specific philosophical schools
1
304 - Factors affecting social behavior
1
370 - Education
1
410 - Linguistics
1
600 - Technology
1
700 - The arts; fine & decorative arts
1